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By what percent will a fraction change if its numerator is increased by 60% and its denominator is decreased by 20%?
2 answers
original value: n/d
new value: 1.60n/0.80d = 2n/d
so, it has grown by 100%
new value: 1.60n/0.80d = 2n/d
so, it has grown by 100%