Question

By what percent will a fraction change if its numerator is decreased by 10% and its denominator is decreased by 50%?

Answer 1

80%

Explanation:

0.9/0.5=1.8=180%

180%-100%=80%

Answer 2

Let's assume the fraction is 1/1
decreasing 1 by 10% = .9
decreasing 1 by 50% = .5
So the fraction becomes .9/.5 = 1.8
So its value increases by 180%