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  • 怎样简便就怎样算.
    \( \frac {5}{7}\)+\( \frac {3}{8}\)+\( \frac {2}{7}\)+\( \frac {5}{8}\) \( \frac {13}{15}\)-\( \frac {7}{10}\)+0.4 3.25+\( \frac {4}{5}\)-(1.25+\( \frac {4}{5}\))
    \( \frac {5}{12}\)-(\( \frac {7}{12}\)-\( \frac {1}{6}\))+\( \frac {13}{15}\) 12-\( \frac {7}{15}\)-\( \frac {8}{15}\) \( \frac {5}{18}\)+3\( \frac {9}{13}\)+\( \frac {18}{13}\)-\( \frac {9}{13}\)
    【考点】运算定律与性质,分数四则混合运算
    【分析】请登陆后查看
    【解答】请登陆后查看
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