Solve the following exercise:
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Solve the following exercise:
To solve the problem of subtracting the fraction from , follow these steps:
Step 1: Identify the least common multiple (LCM) of the denominators 5 and 10.
The LCM of 5 and 10 is 10.
Step 2: Convert each fraction to an equivalent fraction with the common denominator of 10.
- The fraction can be converted to have a denominator of 10 by multiplying both the numerator and the denominator by 2. Thus, .
- The fraction already has the denominator of 10, so it remains .
Step 3: Subtract the second fraction from the first.
Subtract the numerators while keeping the common denominator: .
Step 4: Simplify the resulting fraction.
The fraction can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 2: .
Therefore, the solution to the problem is , which corresponds to choice number 2.
Solve the following exercise:
\( \frac{8}{5}-\frac{4}{5}=\text{?} \)
Because fractions represent parts of a whole! You can only subtract fractions when they have the same denominator - like subtracting 8 tenths minus 6 tenths.
List the multiples: 5 = 5, 10, 15... and 10 = 10, 20, 30... The smallest number that appears in both lists is 10, so LCM = 10.
Yes! Always check if you can reduce your fraction to lowest terms. Divide both numerator and denominator by their greatest common divisor (GCD).
That's okay! For example, with denominators 3 and 7, the LCM would be 21. You'd convert both fractions to have denominator 21 before subtracting.
Check if 1 and 5 share any common factors besides 1. Since 1 only has itself as a factor, and 5 is prime, is already in simplest form!
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