Question

the product of two rational number is -15/28. If one of them is -18/7, find the other

Answer 1

let the other number be x.

given: one number=-18/7

product= -15/28

so, -18/7*x = -15/28

x = -15/28*-7/18

x = 5/4*1/6

x = 5/24

other number is 5/24