13/37 . 5/12 – 7/37 . 13/6|+ -1/37 . 13/4 ( giải rõ dùm e vs ạ, e sắp nộp r)

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13/37 . 5/12 – 7/37 . 13/6|+ -1/37 . 13/4 ( giải rõ dùm e vs ạ, e sắp nộp r)

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Maya 1 năm 2021-10-16T04:58:34+00:00 1 Answers 4 views 0

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    2021-10-16T04:59:53+00:00

    $\dfrac{13}{37} . \dfrac{5}{12} – \dfrac{7}{37} . \dfrac{13}{6} + \dfrac{-1}{37} . \dfrac{13}{4}$

    $= \dfrac{13}{37} . \dfrac{5}{12} – \dfrac{13}{37} . \dfrac{7}{6} + \dfrac{13}{37} . \dfrac{-1}{4}$

    $= \dfrac{13}{37} ( \dfrac{5}{12} – \dfrac{7}{6} + \dfrac{-1}{4} )$

    $= \dfrac{13}{37} . \dfrac{-5}{6}$

    $= \dfrac{-65}{222}$

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