18. The numerator of a fraction is four less than its denominator. I 1 is added to be
numerator and denominator, the fraction becomes Find the fraction
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hey here is your answer
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so here we go
Step-by-step explanation:
let the required fraction be x/y
wherein numbmerator be x and that of denominator be y
so according to first condition
x=y-4 (1)
according to the second condition
x+1/y+1=1/2
so 2(x+1)=y+1
ie 2x+2=y+1
so 2x=y-1 (2)
substitute value of x in (2)
we get
2(y-4)=y-1
ie 2y-8=y-1
ie y=7
substitute value of x in any of two equations
you get x=3
thus our assumed fraction=x/y
=3/7
thus the required fraction is 3/7
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