The denominator of a fraction is 2 less than twice the numberator. If the numerator is decreased by 2 and the denominator is increased by 3, the resulting fraction simplifies to 1/3. Find the original fraction.

Question

Have no idea what to do.

Answer 1

n/d = n/(2n-1)

(n-2)/(2n+2) = 1/3
3n - 6 = 2n + 2

n = 8
d = 15
so
n/d = 8/15