The denominator of a fraction is 3 more than the numerator. If 5 is added to the numerator and 4 is subtracted from the denominator the value of the new fraction is 2. Find the original fraction?

Answer 1

n/(n+3)

(5 + n )/(n-1) = 2
5+n = 2 n - 2
n = 7

so
7/10

Answer 2

Anonymous subtracted 1 instead of 4 from the denominator.
repeat his steps using
(5 + n )/(n-4) = 2