Addition of Fractions: The common denominator is smaller than the product of the denominators

To find the sum $\frac{1}{4} + \frac{7}{8}$, follow these steps:

• Step 1: Identify the least common denominator (LCD) of the fractions. The denominators 4 and 8 have an LCD of 8.
• Step 2: Convert $\frac{1}{4}$ to an equivalent fraction with a denominator of 8. Multiply both the numerator and the denominator by 2: $\frac{1}{4} = \frac{1 \times 2}{4 \times 2} = \frac{2}{8}$.
• Step 3: The second fraction, $\frac{7}{8}$, already has the correct denominator. Therefore, it remains $\frac{7}{8}$.
• Step 4: Add the numerators of the two fractions: $\frac{2}{8} + \frac{7}{8} = \frac{2+7}{8} = \frac{9}{8}$.

Therefore, the sum of $\frac{1}{4}$ and $\frac{7}{8}$ is $\frac{9}{8}$.

To solve this problem, we need to add the fractions $\frac{4}{10}$ and $\frac{5}{12}$ by first finding a common denominator.

Step 1: Find the Least Common Denominator (LCD)

The denominators are $10$ and $12$. The least common multiple of $10$ and $12$ can be determined by prime factorization:

• $10 = 2 \times 5$
• $12 = 2^2 \times 3$

For the LCM, take the highest power of each prime:

• For $2$, take $2^2$
• For $3$, take $3$
• For $5$, take $5$

The LCM is $2^2 \times 3 \times 5 = 60$. Thus, the common denominator is $60$.

Step 2: Convert Fractions to Have the Common Denominator

• Convert $\frac{4}{10}$ to $\frac{?}{60}$.

$\frac{4}{10} = \frac{4 \times 6}{10 \times 6} = \frac{24}{60}$.
• Convert $\frac{5}{12}$ to $\frac{?}{60}$.

$\frac{5}{12} = \frac{5 \times 5}{12 \times 5} = \frac{25}{60}$.

Step 3: Add the Fractions

Add $\frac{24}{60}$ and $\frac{25}{60}$:

$\frac{24}{60} + \frac{25}{60} = \frac{24 + 25}{60} = \frac{49}{60}$.

Therefore, the solution to the problem is $\frac{49}{60}$.

To solve the problem of adding the fractions $\frac{3}{4}$ and $\frac{1}{6}$, we need to find a common denominator.

• Step 1: Find the LCM of the denominators:
  The denominators are 4 and 6. The LCM of 4 and 6 is 12.
• Step 2: Convert each fraction to have the common denominator:
  - Convert $\frac{3}{4}$ to an equivalent fraction with a denominator of 12. To do this, multiply both the numerator and the denominator by 3:
  $\frac{3}{4} = \frac{3 \times 3}{4 \times 3} = \frac{9}{12}$.
  - Convert $\frac{1}{6}$ to an equivalent fraction with a denominator of 12. Multiply both the numerator and the denominator by 2:
  $\frac{1}{6} = \frac{1 \times 2}{6 \times 2} = \frac{2}{12}$.
• Step 3: Add the fractions:
  Now that both fractions have the same denominator, add the numerators:
  $\frac{9}{12} + \frac{2}{12} = \frac{11}{12}$.
• Step 4: Simplify if necessary:
  The fraction $\frac{11}{12}$ is already in its simplest form.

Therefore, the solution to the problem $\frac{3}{4} + \frac{1}{6}$ is $\frac{11}{12}$.

To solve the problem of adding the fractions $\frac{4}{8} + \frac{3}{10}$, we follow these steps:

• Step 1: Determine the least common denominator (LCD) for the fractions.
• Step 2: Convert each fraction to have the LCD.
• Step 3: Add the numerators of these converted fractions.

Let's go through each step in detail:

Step 1: Find the least common denominator for the fractions.

The denominators are 8 and 10. The least common multiple of 8 and 10 is 40. So, the LCD is 40.

Step 2: Convert each fraction to an equivalent fraction with a denominator of 40.

For $\frac{4}{8}$: Multiply both the numerator and denominator by 5 to convert it:

$\frac{4 \times 5}{8 \times 5} = \frac{20}{40}$.

For $\frac{3}{10}$: Multiply both the numerator and denominator by 4 to convert it:

$\frac{3 \times 4}{10 \times 4} = \frac{12}{40}$.

Step 3: Add the two fractions with the common denominator:

$\frac{20}{40} + \frac{12}{40} = \frac{20 + 12}{40} = \frac{32}{40}$.

Thus, the sum of the fractions is $\frac{32}{40}$.

Therefore, the solution to the problem is $\frac{32}{40}$.

To solve this problem, we'll follow these steps:

• Step 1: Find the least common multiple (LCM) of the denominators 10 and 4.
• Step 2: Convert both fractions to have the common denominator.
• Step 3: Add the numerators and present the result.

Now, let's work through each step:

Step 1: Find the LCM of 10 and 4. The prime factors of 10 are $2 \times 5$, and for 4, $2^2$. The LCM is $2^2 \times 5 = 20$.

Step 2: Convert the fractions:
$\frac{5}{10}$ can be converted by multiplying both the numerator and the denominator by 2: $\frac{5 \times 2}{10 \times 2} = \frac{10}{20}$.
$\frac{1}{4}$ can be converted by multiplying both the numerator and the denominator by 5: $\frac{1 \times 5}{4 \times 5} = \frac{5}{20}$.

Step 3: Add the fractions:
$\frac{10}{20} + \frac{5}{20} = \frac{10 + 5}{20} = \frac{15}{20}$.

Therefore, the solution to the problem is $\frac{15}{20}$, which matches choice ID 4.

To solve the problem of adding the fractions $\frac{1}{2}$ and $\frac{4}{6}$, we start by finding the least common denominator (LCD).

First, we identify the denominators: 2 and 6. The least common multiple of 2 and 6 is 6, which will be our LCD.

Next, we convert each fraction to have the denominator of 6:

• Convert $\frac{1}{2}$ to an equivalent fraction with a denominator of 6. Since $2 \cdot 3 = 6$, multiply the numerator by 3: $\frac{1 \times 3}{2 \times 3} = \frac{3}{6}$.

• The fraction $\frac{4}{6}$ already has the desired common denominator.

Now that the fractions are $\frac{3}{6}$ and $\frac{4}{6}$, we can add them:

$\frac{3}{6} + \frac{4}{6} = \frac{3+4}{6} = \frac{7}{6}$.

The solution to the problem is $\frac{7}{6}$, which matches choice 2.

To solve this problem, we will perform the following steps:

• Step 1: Find the Least Common Multiple (LCM) of the denominators 3 and 9.
• Step 2: Convert both fractions to have a common denominator.
• Step 3: Add the numerators of the converted fractions and write the result over the common denominator.
• Step 4: Simplify the resultant fraction if needed.

Let's work through each step:

Step 1:
The denominators of our fractions are 3 and 9. The LCM of 3 and 9 is 9, since 9 is the smallest number that both 3 and 9 divide evenly into.

Step 2:
Convert each fraction to have a denominator of 9.

- For $\frac{2}{3}$, multiply both the numerator and denominator by 3 (because $\frac{9}{3} = 3$):
$\frac{2}{3} = \frac{2 \times 3}{3 \times 3} = \frac{6}{9}$

- The second fraction $\frac{7}{9}$ already has a denominator of 9, so it remains the same:
$\frac{7}{9}$

Step 3:
Add the two fractions:
$\frac{6}{9} + \frac{7}{9} = \frac{6 + 7}{9} = \frac{13}{9}$

Step 4:
The fraction $\frac{13}{9}$ is in its simplest form because 13 is a prime number and does not divide evenly into 9.

Therefore, the solution to the problem is $\frac{13}{9}$.

To solve the problem of adding $\frac{3}{14} + \frac{3}{7}$, we need the following steps:

• Step 1: Identify the least common denominator of $14$ and $7$. Since $7$ is a factor of $14$, the least common denominator is $14$.
• Step 2: Rewrite the fractions with the common denominator.
  The fraction $\frac{3}{7}$ can be converted to an equivalent fraction with the denominator $14$:
• Multiply the numerator and the denominator of $\frac{3}{7}$ by $2$ (since $7 \times 2 = 14$) to get $\frac{6}{14}$.
• Step 3: Add $\frac{3}{14}$ and $\frac{6}{14}$ now that they have the same denominator:
  $\frac{3}{14} + \frac{6}{14} = \frac{3+6}{14} = \frac{9}{14}$.
• Step 4: Simplify if necessary. The numerator and denominator here are coprime, so $\frac{9}{14}$ is already in its simplest form.

Thus, the sum of the fractions is $\frac{9}{14}$.

To solve the problem of adding $\frac{3}{4}$ and $\frac{3}{8}$, let's follow a systematic approach:

• Step 1: Identify the Common Denominator
  The denominators are 4 and 8. The least common multiple (LCM) of 4 and 8 is 8. Thus, 8 will be our common denominator.
• Step 2: Convert Fractions to Common Denominator
  The fraction $\frac{3}{4}$ needs to be converted to an equivalent fraction with a denominator of 8. To do this, multiply both the numerator and the denominator by 2: $\frac{3}{4} = \frac{3 \times 2}{4 \times 2} = \frac{6}{8}$.
  The fraction $\frac{3}{8}$ already has a denominator of 8, so it remains the same: $\frac{3}{8}$.
• Step 3: Add the Fractions
  With a common denominator, add the numerators while keeping the denominator the same: $\frac{6}{8} + \frac{3}{8} = \frac{6 + 3}{8} = \frac{9}{8}$.
• Step 4: Simplify the Fraction if Necessary
  The fraction $\frac{9}{8}$ is already in its simplest form, but it is an improper fraction. If desired, it can be expressed as a mixed number: $1 \frac{1}{8}$. However, $\frac{9}{8}$ as a fraction suffices for this problem.

Therefore, the solution to the problem is $\frac{9}{8}$.

To solve the problem of adding $\frac{3}{8}$ and $\frac{5}{12}$, follow these steps:

• Step 1: Find the least common multiple (LCM) of the denominators 8 and 12. The LCM of 8 and 12 is 24.
• Step 2: Convert the fractions to have the common denominator 24.
  To convert $\frac{3}{8}$ to a denominator of 24:
  Multiply both the numerator and denominator by 3: $\frac{3 \times 3}{8 \times 3} = \frac{9}{24}$.
• Step 3: Convert $\frac{5}{12}$ to a denominator of 24:
  Multiply both the numerator and denominator by 2: $\frac{5 \times 2}{12 \times 2} = \frac{10}{24}$.
• Step 4: Add the fractions $\frac{9}{24} + \frac{10}{24}$.
  Since they share the same denominator, add the numerators: $9 + 10 = 19$.
• Step 5: The sum is $\frac{19}{24}$. There is no need to simplify further, as 19 and 24 have no common factors other than 1.

Thus, the fraction $\frac{3}{8} + \frac{5}{12}$ simplifies to $\frac{19}{24}$.

To solve this problem, we will add the fractions $\frac{4}{12}$ and $\frac{5}{6}$. Follow these steps:

• Step 1: Find the least common denominator (LCD) of the fractions. The denominators are 12 and 6. The LCD is 12 because it is the smallest number into which both 12 and 6 divide evenly.
• Step 2: Convert the fractions to have the common denominator 12. The fraction $\frac{4}{12}$ is already expressed with this denominator.
• Step 3: Convert $\frac{5}{6}$ to an equivalent fraction with a denominator of 12. To do this, determine what number times 6 gives 12, which is 2. Multiply both the numerator and the denominator of $\frac{5}{6}$ by 2:
$\frac{5}{6} = \frac{5 \times 2}{6 \times 2} = \frac{10}{12}$
• Step 4: Add the fractions now that they have the same denominator:
$\frac{4}{12} + \frac{10}{12} = \frac{4 + 10}{12} = \frac{14}{12}$
• Step 5: Simplify the resulting fraction, $\frac{14}{12}$. Both the numerator and the denominator are divisible by 2, so:
$\frac{14}{12} = \frac{14 \div 2}{12 \div 2} = \frac{7}{6}$

Thus, the sum of the fractions $\frac{4}{12}$ and $\frac{5}{6}$ is $\frac{7}{6}$.

Therefore, the correct answer is $\frac{7}{6}$.

To solve the problem of adding $\frac{1}{2}$ and $\frac{1}{6}$, we need to follow these steps:

• Step 1: Determine the least common denominator (LCD).
• Step 2: Convert the fractions to have this common denominator.
• Step 3: Add the fractions.
• Step 4: Simplify the result if necessary.

Step 1: The denominators are 2 and 6. The least common multiple of 2 and 6 is 6.

Step 2: We convert each fraction:
- Convert $\frac{1}{2}$ to a denominator of 6: $\frac{1}{2} = \frac{1 \times 3}{2 \times 3} = \frac{3}{6}$.
- The fraction $\frac{1}{6}$ already has the denominator 6.

Step 3: Add the fractions with common denominators:
$\frac{3}{6} + \frac{1}{6} = \frac{3 + 1}{6} = \frac{4}{6}.$

Step 4: Simplify the fraction $\frac{4}{6}$.
The greatest common divisor of 4 and 6 is 2, so divide both the numerator and the denominator by 2:
$\frac{4}{6} = \frac{4 \div 2}{6 \div 2} = \frac{2}{3}.$

Therefore, the solution to the problem is $\frac{2}{3}$.

We need to find a common denominator for the fractions $\frac{1}{3}$ and $\frac{1}{6}$ in order to add them together.

Step 1: Identify the least common denominator (LCD).

• The denominators are 3 and 6.
• The least common multiple (LCM) of 3 and 6 is 6. Hence, the LCD is 6.

Step 2: Convert each fraction to an equivalent fraction with the LCD of 6.

• $\frac{1}{3}$ needs to be converted. Multiply both numerator and denominator by 2: $\frac{1}{3} = \frac{1 \times 2}{3 \times 2} = \frac{2}{6}$.
• $\frac{1}{6}$ already has the denominator as 6, so it remains $\frac{1}{6}$.

Step 3: Add the fractions.

• Now that the denominators are the same, we can add the numerators: $\frac{2}{6} + \frac{1}{6} = \frac{2 + 1}{6} = \frac{3}{6}$.

Step 4: Simplify the result.

• $\frac{3}{6}$ can be simplified by dividing both the numerator and the denominator by their greatest common divisor (GCD), which is 3: $\frac{3}{6} = \frac{3 \div 3}{6 \div 3} = \frac{1}{2}$.

Thus, the result of the addition of $\frac{1}{3}$ and $\frac{1}{6}$ is $\frac{1}{2}$.

Therefore, the solution to the problem is $\frac{1}{2}$.

The problem involves adding the fractions $\frac{1}{3}$ and $\frac{4}{9}$.

Step 1: Identify the Least Common Denominator (LCD).

• The denominators are 3 and 9. The least common multiple of 3 and 9 is 9. Thus, the LCD is 9.

Step 2: Convert the fractions to have the common denominator.

• The fraction $\frac{1}{3}$ must be converted to have the denominator of 9. Multiply both the numerator and denominator by 3:
• $\frac{1}{3} = \frac{1 \times 3}{3 \times 3} = \frac{3}{9}$
• The fraction $\frac{4}{9}$ already has the denominator of 9, so it remains unchanged.

Step 3: Add the equivalent fractions.

• Add the numerators together, keeping the denominator:
• $\frac{3}{9} + \frac{4}{9} = \frac{3+4}{9} = \frac{7}{9}$

Step 4: Simplify the result, if necessary.

• The fraction $\frac{7}{9}$ is already in simplest form.

Therefore, the solution to the problem is $\frac{7}{9}$.

To solve this problem, we'll follow these steps:

• Step 1: Determine the least common denominator of 4 and 6.
• Step 2: Convert each fraction to this common denominator.
• Step 3: Add the numerators and form the resultant fraction.
• Step 4: Simplify the resulting fraction if necessary.

Now, let's work through each step:
Step 1: The denominators are 4 and 6. The least common multiple of 4 and 6 is 12.

Step 2: Convert each fraction to have the denominator 12.
For $\frac{1}{4}$, multiplying the numerator and denominator by 3 gives $\frac{1 \times 3}{4 \times 3} = \frac{3}{12}$.
For $\frac{2}{6}$, multiplying the numerator and denominator by 2 gives $\frac{2 \times 2}{6 \times 2} = \frac{4}{12}$.

Step 3: Add the fractions: $\frac{3}{12} + \frac{4}{12} = \frac{3 + 4}{12} = \frac{7}{12}$.

Step 4: Check if $\frac{7}{12}$ can be simplified. Since 7 and 12 have no common factors other than 1, it is already in its simplest form.

Therefore, the sum of $\frac{1}{4} + \frac{2}{6}$ is $\frac{7}{12}$.

To solve this problem, we'll follow these steps:

• Step 1: Identify the denominators of the fractions.
• Step 2: Because the denominators are the same, add the numerators.
• Step 3: Simplify the resulting fraction if necessary.

Now, let's work through each step:
Step 1: Both fractions, $\frac{1}{4}$ and $\frac{3}{4}$, have the same denominator, 4.
Step 2: Since the denominators are the same, we can add the numerators: $1 + 3 = 4$.
Step 3: The resulting fraction is $\frac{4}{4}$, which simplifies to $1$.

Therefore, the solution to the problem is $1$.

We must first identify the lowest common denominator between 4 and 6.

In order to determine the lowest common denominator, we need to find a number that is divisible by both 4 and 6.

In this case, the common denominator is 12.

We will then proceed to multiply each fraction by the appropriate number to reach the denominator 12

We'll multiply the first fraction by 3

We'll multiply the second fraction by 2

$\frac{1\times3}{4\times3}+\frac{3\times2}{6\times2}=\frac{3}{12}+\frac{6}{12}$

Finally we'll combine and obtain the following:

$\frac{6+3}{12}=\frac{9}{12}$

To solve the problem of adding $\frac{1}{4} + \frac{4}{6}$, follow these steps:

• Step 1: Find the Least Common Denominator (LCD):
  The denominators are 4 and 6. The least common multiple of 4 and 6 is 12.
• Step 2: Convert Each Fraction:
  - Convert $\frac{1}{4}$ to a fraction with a denominator of 12:
  $\frac{1}{4} = \frac{1 \times 3}{4 \times 3} = \frac{3}{12}$
  - Convert $\frac{4}{6}$ to a fraction with a denominator of 12:
  $\frac{4}{6} = \frac{4 \times 2}{6 \times 2} = \frac{8}{12}$
• Step 3: Add the Fractions:
  Now, add the fractions: $\frac{3}{12} + \frac{8}{12} = \frac{3 + 8}{12} = \frac{11}{12}$
• Step 4: Simplify the Fraction (if needed):
  The fraction $\frac{11}{12}$ is already in its simplest form.

Therefore, the solution to the problem is $\frac{11}{12}$.

To solve the problem of adding the fractions $\frac{1}{5}$ and $\frac{7}{10}$, we follow these steps:

• Step 1: Identify the least common multiple (LCM) of the denominators 5 and 10, which is 10.
• Step 2: Convert $\frac{1}{5}$ to a fraction with a denominator of 10. To do this, multiply both the numerator and denominator by 2: $\frac{1}{5} = \frac{1 \times 2}{5 \times 2} = \frac{2}{10}$
• Step 3: Observe that $\frac{7}{10}$ already has the common denominator of 10.
• Step 4: Add the two fractions with a common denominator: $\frac{2}{10} + \frac{7}{10} = \frac{2 + 7}{10} = \frac{9}{10}$

The sum of $\frac{1}{5}$ and $\frac{7}{10}$ is thus $\mathbf{\frac{9}{10}}$.

To solve the problem of adding $\frac{2}{4}$ and $\frac{1}{6}$, follow these steps:

Step 1: Identify the least common denominator of the fractions.

The denominators of the fractions are 4 and 6. The least common multiple of 4 and 6 is 12, so 12 is our common denominator.

Step 2: Convert each fraction to an equivalent fraction with the denominator of 12.

• For $\frac{2}{4}$: Multiply both numerator and denominator by 3 to obtain $\frac{6}{12}$. This is because $4 \times 3 = 12$.

• For $\frac{1}{6}$: Multiply both numerator and denominator by 2 to obtain $\frac{2}{12}$. This is because ${6 \times 2 = 12}$.

Step 3: Add the converted fractions.

$\frac{6}{12} + \frac{2}{12} = \frac{6 + 2}{12} = \frac{8}{12}$

Step 4: Simplify the final fraction if possible.

In this case, $\frac{8}{12}$ can be simplified by dividing numerator and denominator by their greatest common divisor, which is 4. Thus, $\frac{8}{12}$ simplifies to $\frac{2}{3}$.

However, as per the problem's required answer, the unsimplified fraction is $\frac{8}{12}$.

Therefore, the solution to the problem is:

$\frac{8}{12}$