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13 June, 05:23

Write the rational number 2.13 repeating as the ratio of two integers

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  1. 13 June, 05:50
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    Let

    x = 2.131313 ... Equation 1

    Multiply both sides by 100 to get:

    100x = 213.131313 ... Equation 2

    Subtract equation 1 from equation 2.

    99x = 211

    x = 211/99

    Answer: 211/99
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