Question

the numerator of a fraction is 4 less than the denominator if 1 is added to both its numerator and denominator becomes one by two find the fraction??


very urgent

Answer 1

Hii here your answer

let the denominator of required fraction Be x

then its numerator =(x-4)

(x-4)+1/x+1=1/2

=>x-3/x+1=1/2

=>2 (x-3)=x+1

=>2x-6=x+1

=>2x-x=6+1

=>x=7

denominator =7and numerator =(7-4)=3

Hence the requured fraction is 3/7.


hope its help you



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Answer 2

let fraction = x/y
x= y-4

=y-4/y

when 1 is added to both then ans is 1/2


y-4+1/y+1=1/2
y-3/y+1=1/2
2y-6=y+1
2y-y=1+6
y=7

x= y-4
x=7-4
x=3.



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