27/20 : 2,7 +2,7 : 1,35 +(0,4 : 4/2) . (4,2 – 43/40)

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27/20 : 2,7 +2,7 : 1,35 +(0,4 : 4/2) . (4,2 – 43/40)

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Remi 19 phút 2021-09-10T12:40:31+00:00 2 Answers 0 views 0

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    0
    2021-09-10T12:42:11+00:00

    27/20 : 2,7 +2,7 : 1,35 +(0,4 : 4/2) . (4,2 – 43/40)

    = 1/2 + 2 + 1/5 . 25/8

    = 5/2 + 75/16

    = 115/16

    0
    2021-09-10T12:42:27+00:00

    Đáp án:

     

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