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The denominator of a fraction is 4 more than the numerator. If both the numerator and the denominator are increased by 1, the fraction becomes 4/5. What is the original fraction?

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3 answers
  1. 69 is not a fraction.

    d = n+4
    (n+1)/(d+1) = 4/5
    (n+1)/(n+4+1) = 4/5
    (n+1)/(n+5) = 4/5
    5(n+1) = 4(n+5)
    5n+5 = 4n+20
    n = 15

    The fraction was 15/19

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  2. thanks

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  3. thanks for given answer.

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