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Question 810881: in a certain fraction, the denominator is 4 less than the numerator. If 3 is added to the numerator and denominator, the resulting fraction is equivalent to 3/2. What was the original fraction?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! n/(n-4)
(n+3)/(n-1) = 3/2
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(n+3)/(n-1) = 3/2
(n+3) = 3/2(n-1)
n + 3 = (3/2)n - (3/2)
(2/2)n - (3/2)n = -(3/2) - (6/2)
-(1/2)n = -(9/2)
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n = 9
original fraction was: 9/5
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