Q2 of 25 Page 79

The denominator of a fraction is greater than its numerator by 12. If the numerator is decreased by 2 and the denominator is increased by 7, the new fraction is equivalent with 1/2. Find the fraction.

let the numerator be x, so dthe enominator is x + 12

New numerator is x – 2 , newthe denominator is x + 12 + 7


So according to given conditions


Multiplying both sides by



Multiplying by x + 19 on both sides


2(x – 2) = x + 19


2x – 4 = x + 19


Adding – x on both sides


x – 4 = 19


Adding 4 on both sides


x = 23


So, numerator is 23 and denominator is 12 + 23 = 35


Required fraction is


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