Question

A rational number 5 upon 12 is equal to the sum of two rational numbers. If one of them is -3 upon 24 what is the other one

Answer 1

here is your answer........
13/24

Answer 2

$\huge\red{Answer\:is}$

Let the other rational number be x
so ATQ
$- \frac{3}{24} + x = \frac{5}{12} \\ x = \frac{5}{12} + \frac{3}{24} \\ x = \frac{10 + 3}{24} \\ x = \frac{13}{24} \\ so \: the \: other \: number \: is \: \frac{13}{24}$
Hope it helps you