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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 7: (13/5 – 11/4) : 2018/2019 -(-7/4+ 8/5) : 2018/2019

Toán Lớp 7: (13/5 – 11/4) : 2018/2019 -(-7/4+ 8/5) : 2018/2019

Comments ( 2 )

  1. Answer
    (13/5 – 11/4) : 2018/2019 – (-7/4 + 8/5) : 2018/2019
    = -3/20 : 2018/2019 + 3/20 : 2018/2019
    = -3/20 . 2019/2018 + 3/20 . 2019/2018
    = 2019/2018 . (3/20 – 3/20)
    = 2019/2018 . 0
    = 0

  2. Giải đáp:
    =0
    Lời giải và giải thích chi tiết:
    (13/5-11/4) : 2018/2019 -(-7/4+8/5) : 2018/2019
    = -3/20 : 2018/2019 + 3/20 : 2018/2019
    = (-3/20 + 3/20) : 2018/2019
    = 0. 2019/2018
    = 0

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222-9+11+12:2*14+14 = ? ( )