Question

If 1 is added to both mumenator or
denominator,a fraction becomes 3/4.If 3 is subtract from both numenator or denominator the fraction becomes 1/2.What is the fraction?​

Answer 1

Answer:

the fraction is-2 /-7 =2/7

explanation: let njmerator be x and denominator be y

A.T.Q

x+1/y+1=3/4

x-3/y-3=1/2

by cross multiply

4x-3y=-1____(1)

2x-y=3_____(2)

frpm eq.2

x=3+y/2___(3)

put value of x in eq.1

4(3+y/2)-3y=-1

6+2y-3y=-1

y=-7

put value of y in eq3

x=3-7/2=-2

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