What is \(\frac{2}{4} + \frac{4}{5} - \frac{7}{10}\)?
Answer (2)
Make sure they have all common denominators 4 2 + 5 4 − 10 7
4 2 ∗ 5 5 = 20 10
5 4 ∗ 4 4 = 20 16
10 7 ∗ 2 2 = 20 14
20 10 + 20 16 − 20 14
Add 20 10 + 20 16 = 20 26 20 26 − 20 14 = 20 12
To simplify, you must find the largest common factor which 4 In 20 12 12÷4=3 and 20÷4=5
The answer is 5 3
The solution to 4 2 + 5 4 − 10 7 is found by converting the fractions to have a common denominator of 20. After performing the addition and subtraction, the result simplifies to 5 3 .
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