Question

NO ONE CAN SOLVE THIS, NEITHER CAN YOU :::By what percent will a fraction change if its numerator is decreased by 10% and its denominator is decreased by 70%?

Answer 1

9/5

Step-by-step explanation:

original fraction : x/y

new fraction = .9x/(.5y)

= 9x/5y

(9x/5y) / (x/y)

= 9x/5y * y/x

= 9/5

= 1.8

so it increased by 80%

e.g suppose we had 100/200 or 1/2

new fraction = 90/100 or 9/10

new ratio = (9/10) / (1/2)

= 9/5

Answer 2

Suppose that we have a fraction. Let use 10/10 for example. Let do the transformation and see what happens to the fraction.

10/10 ----> 9/3

The number changed from 1 (10/10) to 3 (9/3).

The fraction increases by 200%.