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Math Help - Simplify help needed

  1. #1
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    Simplify help needed

    Simplify

    4/9 . {3/7 - 1/7}
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  2. #2
    TD!
    TD! is offline
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    What's the problem?

    <br />
\frac{4}{9}\left( {\frac{3}{7} - \frac{1}{7}} \right) = \frac{4}{9}\left( {\frac{2}{7}} \right) = \frac{{2 \cdot 4}}{{9 \cdot 7}} = \frac{8}{{63}}<br />
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