Question

Numerator of a fraction is 4 less than the denominator . If 1 is added to both its numerator and denominator it becomes 1 upon 2 find the fraction

Answer 1

let the denominator be x
let the numerator be x-4

one is added:
Denominator=x+1
Numerator=(x-4)+1


Then the answer is= 1/2


.
. . x+1/(x-4)+1=1/2
2(x+1) =1(x-4)+1
2x+2 =x-4+1
2x-x=-3-2
x=-5
denominator=-5
numerator=x-4
-5-4
-9

thus the fraction is -9/-5
but minus and minus is cancel so the fraction is 9/5.