Question

if the numerator of a fractional is increased by 20% and its denominator is diminised by 10% the value of the fraction is 16/21. the original fraction is

Answer 1

Answer:

4/7

Step-by-step explanation:

Let say original number = N/D

{N(1+20/100)} / {D(1-10/100)} = 16/21

(1.2 N) / (0.9 D) = 16/21

12N / 9D = 16/21

4N / 3D = 16/21

N/D = 4/7