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8 March, 22:27

Whats 0.87 repeating as a fraction?

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  1. 9 March, 01:45
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    We let 100x=87.7 and 10x=8.7

    then we subtract the to equations

    100x-10x=8.7-87.7

    90x=79

    x=79/90

    then 0.87777 ... = 79/90
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