5/9:(1/11-5/22)+5/9:(1/15-2/3)

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5/9:(1/11-5/22)+5/9:(1/15-2/3)

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Nho 4 years 2020-10-14T15:06:48+00:00 2 Answers 108 views 0

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  1. Bo
    0
    2020-10-14T15:08:16+00:00
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    `5/9:(1/11-5/22)+5/9:(1/15-2/3)`

    `5/9:(-3/22)+5/9:(-3/5)`

    `5/9:(-3/22+ -3/5)`

    `-5`

     

  2. Jezebel
    0
    2020-10-14T15:08:33+00:00
    Reply

    `5/9÷(1/11-5/22)+5/9÷(1/15-2/3)`

    `=5/9÷(2/22-5/22)+5/9÷(1/15-10/15)`

    `=5/9÷(-3)/22+5/9÷(-9)/15`

    `=5/9×(-22)/3+5/9×(-15)/9`

    `=(5×(-22))/(9×3)+(5×(-15))/(9×9)`

    `=(-110)/27+(-75)/81`

    `=(-330)/81+(-75)/81`

    `=(-225)/81`

    CHÚC BẠN HỌC TỐT!!!

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )