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24 July, 14:30

The numerator of a fraction is 1 more than twice its denominator. if 4 is added to both the numerator and the denominator, the fraction reduces to 5/3. find the denominator

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  1. 24 July, 14:45
    0
    (2d + 1) / d

    (2d + 1 + 4) / (d + 4) = 5/3

    (2d + 5) / (d + 4) = 5/3

    3 (2d + 5) = 5 (d + 4)

    6d + 15 = 5d + 20

    6d - 5d = 20 - 15

    d = 5

    (11 + 4) / (5 + 4) = 5/3

    15/9 = 5/3

    5/3 = 5/3 (correct)

    ur numerator is 11, ur denominator is 5 ... adding 4 to each gives u 15/9, which reduces to 5/3
  2. 24 July, 14:55
    0
    5.

    the equation looks like:

    ((2x+1) + 4) / ((x) + 4) = 5/3

    then you do cross multiplication and get:

    6x+3+12=5x+20

    subtract 5x on each side. subrtract the 3 and 12 from the 20.

    and you get your answer 5=x
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