Easy question Will give brainliest and thanks If 5 is added to both the numerator and the denominator of a certain fractio

Question

Easy question
Will give brainliest and thanks

If 5 is added to both the numerator and the denominator of a certain fraction, the result is 4/7. If 1 is subtracted from both the numerator and the denominator, the result is 2/5. Find the fraction!!!

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Adeline 3 weeks 2021-10-01T20:49:26+00:00 1 Answer 0

Answers ( )

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    2021-10-01T20:50:31+00:00

    Answer:

    7/16

    Step-by-step explanation:

    Let the fraction be x/y

    (x+5)/(y+5) = 4/7

    7x + 35 = 4y + 20

    7x + 15 = 4y

    (x-1)/(y-1) = 2/5

    5x – 5 = 2y – 2

    2y = 5x – 3

    7x + 15 = 2(5x – 3)

    7x + 15 = 10x – 6

    3x = 21

    x = 7

    2y = 5(7) – 3

    2y = 32

    y = 16

    x/y = 7/16

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45:7+7-4:2-5:5*4+35:2 =? ( )