Question

the numerator of a rational number is less than its denominator by 3 if the numerator becomes 3 times and denominator is increased by 20 the new number becomes 1 by 8 find the original number ​

Answer 1

Answer:

15/18

Explanation:

let take numerator=x-3

denomenator=x

given, 3(x-3)/x=1/8

          3x-9/20x=1/8

         cross multiplcation

         20x=8(3x-9)

         20x=24x-72

        72=24x-20x

        72=4x

       x=18

       numerator=18-3=15

       denominator=18