Question

The sum of a numerator and denominator of a fraction is 12 if 1 is added fraction becomes 3 upon 4

Answer 1

Hello mate!!


Let numerator be x
so denominator is 12-x
then,add 1 in both
the numerator is x+1
and denominator is 12-x+1
and given new fraction is 3/4
By question,
or, x+1/12-x+1=3/4
4 (x+1)=3 (12-x+1)
4x+4=36-3x+3
4x+3x=36+3-4
7x=35
x=35/7
x=5
so, numerator is 5
and denominator is 12-5=7
the fraction is 5/7
Hope it helpful