(`12/32`+`5/-20`-`10/34`) 4`1/2`:(2/5-3`3/4`).(`-1/2`)^2

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(`12/32`+`5/-20`-`10/34`)
4`1/2`:(2/5-3`3/4`).(`-1/2`)^2

0 bình luận về “(`12/32`+`5/-20`-`10/34`) 4`1/2`:(2/5-3`3/4`).(`-1/2`)^2”

  1. `(12/32+ -5/20 – 10/34)`

    `= 3/8 – 1/4 – 5/17`

    `= 51/136 – 34/136 – 40/136`
    `= (51 – 34 – 40)/136`

    `=-23/136`

    `4 1/2 : (2/5 – 3 3/4). (-1/2)^2`

    `= 9/2 : (2/5 – 15/4). 1/4`
    `= 9/2 : (8/20 – 75/20). 1/4`

    `= 9/2 : -67/20 . 1/4`
    `= 9/2. -20/67. 1/4`

    `= -90/67. 1 /4`

    `= -45/134`

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