Maths

John spent 3/4 of his saving money for a birthday present and 1/7 of his saving money for clothes.He had only $27 left.a)What fraction of his total money he had spent?What Fraction of his money has left?b)what is the total of his money did he save from the beginning?

asked by Jayden Tran
  1. (3/4)x + (1/7)x + 27 = x
    times 28
    21x + 4x + 756 = 28x

    at this point I can tell that he spent 25/28 of his money
    and he would have 3/28 of it left over

    25x + 756 = 28x
    3x = 756
    x = 252

    state you conclusions

    posted by Reiny

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