Question

the denominator of a fraction is two more than the numerator.when we decrease the numerator by1 and increase the denominator by 3,we get 1/4.find the fraction

Answer 1

f=n/d

d=2+n,
(n-1)/(d+3)=1/4

4n-4=d+3
= 2+n+3
4n-4=n+5
3n=9
n=3
d=5