The numerator of any fraction is 4 less than the denominator. If 2 is subtracted From the numerator and 1 is added to denominator then denominator becomes 8 times the numerator. Find the fraction.
Let numerator be x and denominator be x + 4
When 2 is subtracted from numerator it becomes x - 2
When 1 is added to the denominator it becomes x + 5
According to the problem
8(x - 2) = x + 5
⇒ 8x - 16 = x + 5
⇒ 7x = 21
⇒ x = 3
So the fraction is 
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