Question

The sum of the numerator and denominator of a fraction is 12. If 1 is added to both numerator and denominator the fraction becomes �. Find the fraction.​

Answer 1

Answer:

letthefractionbe(ba),thena+b=12orb==12−aand(b+1a+1)=(43)(12−a+1a+1)=(43)4a+4=3(13−a)4a+4=39−3a7a=35a=(735)=5∴b=12−5=7∴fraction(75)