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

Toán Lớp 6: a, -1,8 : ( 1 – 7/10 ) b, -5/7 . 2/13 + -5/7 . 3/13 – 5/7 .8/13

Home/ Toán Lớp 6: a, -1,8 : ( 1 – 7/10 ) b, -5/7 . 2/13 + -5/7 . 3/13 – 5/7 .8/13

Toán Lớp 6: a, -1,8 : ( 1 – 7/10 ) b, -5/7 . 2/13 + -5/7 . 3/13 – 5/7 .8/13

Tháng Hai 17, 2023 Toán học 2 Comments 0 views

Toán Lớp 6: a, -1,8 : ( 1 – 7/10 )
b, -5/7 . 2/13 + -5/7 . 3/13 – 5/7 .8/13

Comments ( 2 )

  1. tuanh
    tuanh
    17 Tháng Hai, 2023 at 3:02 sáng
    Reply
    a, -1,8 : ( 1 – 7/10 )
    = -9/5 : 3/10
    = -9/5 . 10/3
    = -6
    b, -5/7 . 2/13 + -5/7 . 3/13 – 5/7 .8/13
    = -5/7 . (2/13 + 3/13 + 8/13)
    = -5/7 . 1
    = -5/7
     

  2. thuminhthong
    thuminhthong
    17 Tháng Hai, 2023 at 3:02 sáng
    Reply
     a, -1,8 : ( 1 – 7/10)
    = -1,8 : ( 1-  0,7 )
    = -1,8 :  0,3
    =  -6
    b, -5/7 . 2/13 + -5/7 . 3/13 – 5/7 . 8/13
    = -5/7 . (2/13 + 3/13 +8/13)
    =  -5/7 . 1
    = -5/7

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

Thanh THương

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