The numerator of a certain fraction is 3 times the denominator. If the numerator is decreased by 1 and the denomenator is increased by 2, the value of the resulting fraction is 5/2. Find the fraction.

Answer 1

N=3D and
(N-1)/(D+2)=5/2
or 2N-2=5D+10 or
2N=5D+12

solve.

Answer 2

3 hahaha!

Answer 3

The numerator of a certain fraction is 4 times the denominator. If 12 is added to both the numerator and the denominator, the resulting fraction is equivalent to 2. What was the original fraction.