Tính nhanh : 1$\frac{1}{3}$ : 1$\frac{1}{4}$ : 1$\frac{1}{5}$ : 1$\frac{1}{6}$ : 1$\frac{1}{7}$ : 1$\frac{1}{8}$ : 1$\frac{1}{9}$

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Tính nhanh :
1$\frac{1}{3}$ : 1$\frac{1}{4}$ : 1$\frac{1}{5}$ : 1$\frac{1}{6}$ : 1$\frac{1}{7}$ : 1$\frac{1}{8}$ : 1$\frac{1}{9}$

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Ben Gia 1 year 2020-10-21T16:31:21+00:00 2 Answers 68 views 0

Answers ( )

    0
    2020-10-21T16:33:07+00:00

    Đáp án:

     

    Giải thích các bước giải:

     4/3 : 5/4 : 6/5 : 7/6 : 8/7 :9/8 : 10/9 = 4/3 x 4/5 x 5/6 x 6/7 x 7/8 x 8/9 x 9/10 = (4x4x5x6x7x8x9)/3x5x6x7x8x9x10=16/30 = 8/15

    0
    2020-10-21T16:33:15+00:00

    `4/3` : `5/4` : `6/5` : `7/6`  : `8/7` : `9/8` : `10/9`

    = `4/3` . `4/5` . `5/6` . `6/7` . `7/8` . `8/9` . `9/10`

    = `(4 . 4)/(3 . 10)` 

    = `16/30` = `8/15`

    xin hay nhất ạ

     

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