Question

The product of two rational numbers is --28/81. If one of the numbers be 14/27 find the other.

Answer 1

Let the required number be x

14/27 × x = - 28/81

x = - 28/81 ÷ 14/27

x = - 28/81 × 27/14

x = -2 /3

so the required number is - 2/3

Answer 2

let other rational no. is x.
a/q; x ×14/27=28/81
or,x =28/81 ×27/14
=2/3.