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please help with this recurring decimal question watch

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    Hi,
    There are 2 questions, please help:

    write these recurring decimals as fractions.
    x=0.19r2r
    ___=___
    ___=___
    x = __/__

    x=0.124r7r
    ___=___
    ___=___
    x = __/__

    I don't know how to work it out
    Thank you
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    x = 0.19(2)
    100x = 19.(2)
    1000x = 192.2
    900x = 173

    x = 173/900

    Thats how you do it, so you multiply to get rid of the first 'non recurring' part. Multiply by another amount to include the recurring part. Subtract them to get rid of the recurring decimal. Then rearrange to get x=
 
 
 
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Updated: January 23, 2010

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