Question

product of two rational numbers is 63 by 40 if one number is -7 by 5 find the other

Answer 1

So ATQ,
-7/5×x = 63/40
x = -9/5

hope this helps you out!

Answer 2

given product of two rational number is 63/40

one is -7/5

let the second number be x

so -7/5*x=63/40

=> x= -9/8