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

Toán Lớp 4: tính 3+2/5 4-5/7 1-(2/5+1/3)

Tháng Chín 28, 2022 Toán học 2 Comments 0 views

Toán Lớp 4: tính
3+2/5 4-5/7 1-(2/5+1/3)

Comments ( 2 )

  1. aivilanlan
    aivilanlan
    28 Tháng Chín, 2022 at 1:08 chiều
    Reply
    3 + 2/5
    = 3/1 + 2/5
    = 15/5 + 2/5
    = 17/5
    _________________
    4 – 5/7
    = 4/1 – 5/7
    = 28/7 – 5/7
    = 23/7
    __________________
    1 – (2/5 + 1/3)
    = 15/15 – (6/15 + 5/15)
    = 15/15 – 11/15
    = 4/15
     

  2. maingoctruc
    maingoctruc
    28 Tháng Chín, 2022 at 1:08 chiều
    Reply
    \text {Mon}
    3+2/5 = 15/5+2/5 = 17/5
    4-5/7=28/7-5/7=23/7
    1-(2/5+1/3)=15/15-(6/15+5/15)=15/15-11/15=4/15

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

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