Question

the sum of two rational numbers is 5/8 if one of the numbers is 1/ 8 find the other

Answer 1

The answer is 4/8 as 5/8 - 1/8 =4/8

Answer 2

let the other number be x
then
$x + \frac{1}{8} = \frac{5}{8} \\ x = \frac{5}{8} - \frac{1}{8} \\ x = \frac{5 - 1}{8} \\ x = \frac{4}{8} \\ x = \frac{1}{2}$
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