If numerator of a fraction is decreased by 30% and the denominator of the same fraction is increased by 40%, then what fraction of the old is the new fraction?
let the fraction = x/y Decrease by 30% in numerator and increase by 40% in denominator. =(x×70/100)/(y×140/100) =7x/14y=x/2y fraction of the old is the new fraction=(x/2y) ×y/x =1/2.
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