Question

Numerator and denominator of a fraction are in the ratio of 4:7. It reduces to 3/4 on adding 5 to the numerator and subtracting 5 from the denominator. Find the fraction.​

Answer 1

Answer:

let the numerator be 4x and denominator be 7x.

from case given:

4x+5/7x-5=3/4

16x+20=21x-15

5x=35

x=7

numerator =4x=4×7=28

denominator =7x=7×7=49

fraction =28/49

or4/7