? asked in 科學及數學數學 · 7 years ago

簡易方程如何解

請問點樣解7k÷二由三分一=二分之一 這個方程? (急需)

1 Answer

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  • S
    Lv 6
    7 years ago
    Favorite Answer

    7k ÷ 2由1/3 = 1/2

    7k ÷ 7/2 = 1/2

    7k = 1/2 x 2/7

    7k = 1/7

    k = 1/7 x 1/7

    k = 1/49

    2013-04-01 09:08:46 補充:

    更正:上面算錯了

    正確方法:

    7k ÷ (2又1/3) = 1/2

    7k = 1/2 x (2又1/3)

    7k = 1/2 x 7/3

    7k = 7/6

    k = 7/6 x 1/7

    k = 1/6

    2013-04-01 09:10:37 補充:

    1/6 才是正確的答案。

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