the denominator of a fraction is 4 more than numerator if the denominator is increased by 1 and numerator is decreased by 1 then the fraction becomes 4 by 7 find the fraction
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let the numerator be x
a/q
x/x+4
x-1/x+5=4/7
7(x-1)=4(x+5)
7x-7=4x+20
7x-4x=20+7
3x=27
x=27/3
x=9
numerator=9
denominator=13
fraction=9/13
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