Solve the following exercise:
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Solve the following exercise:
To solve for the sum of , we will proceed with the following steps:
Let's begin:
Step 1: Identify the least common denominator (LCD)
The denominators are 10 and 6. The least common multiple (LCM) of 10 and 6 can be found by evaluating their prime factors:
10 = 2 × 5
6 = 2 × 3
The LCM is found by taking the highest power of each prime that appears:
LCM = 2 × 3 × 5 = 30.
Thus, the common denominator is 30.
Step 2: Convert each fraction to an equivalent fraction with the common denominator of 30
For :
Multiply both the numerator and the denominator by 3 to make the denominator 30:
.
For :
Multiply both the numerator and the denominator by 5 to make the denominator 30:
.
Step 3: Add the numerators
Now that the fractions have the same denominator, add the numerators:
.
This fraction cannot be simplified further as 22 and 30 have no common factors besides 1.
Therefore, the sum of is .
Complete the following exercise:
\( \frac{3}{4}:\frac{5}{6}=\text{?} \)
Because fractions represent parts of a whole, and you can't add parts of different-sized wholes! Think of as 4 pieces of a 10-slice pizza and as 2 pieces of a 6-slice pizza - you need equal slice sizes first!
Break each number into prime factors: 10 = 2×5 and 6 = 2×3. The LCD uses the highest power of each prime that appears: LCD = 2×3×5 = 30.
Any common multiple works, but the least common denominator makes calculations easier! For example, 60 would work too: , but this reduces to the same answer as .
Always check if you can simplify! For , find the GCD of 22 and 30. Since 22 = 2×11 and 30 = 2×3×5, they share only 2 as a common factor, giving us .
Yes! and , so 0.4 + 0.333... = 0.733... But working with fractions often gives exact answers instead of rounded decimals.
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