Question

the sum. of two rational numbers is -8/9 if one of them is -5/7 find the other.​

Answer 1

Answer:

let the other rational number is x .

then

$x + ( - \frac{5}{7} ) = - \frac{8}{9} \\ = x = \frac{5}{7} - \frac{8}{9} \\ \\ = x = \frac{45 - 56}{63} \\ = x = - \frac{11}{63}$

I hope it will help you.