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

Toán Lớp 6: B=5/7+0,625:2.3/16-3/16.(2)mũ2

Home/ Toán Lớp 6: B=5/7+0,625:2.3/16-3/16.(2)mũ2

Toán Lớp 6: B=5/7+0,625:2.3/16-3/16.(2)mũ2

Tháng Hai 1, 2023 Toán học 2 Comments 0 views

Toán Lớp 6: B=5/7+0,625:2.3/16-3/16.(2)mũ2

Comments ( 2 )

  1. chauhoangmy98
    chauhoangmy98
    1 Tháng Hai, 2023 at 2:26 sáng
    Reply
    B = 5/7 + 0,625 : 2 . 3/16 – 3/16 . 2^2
    B = 5/7 + 5/8 . 1/2 . 3/16 – 3/16 . 4
    B= 5/7 + 15/256 – 3/4
    B= 1280/1792 + 105/1792 – 3/4
    B=1385/1792 – 3/4
    B= 1385/1792 – 1344/1792
    B=41/1792
    Vậy B= 41/1792

  2. quynhthanhnhu
    quynhthanhnhu
    1 Tháng Hai, 2023 at 2:26 sáng
    Reply
    B = 5/7 + 0,625 : 2 . 3/16 – 3/16 . 2^2
    -> B = 5/7 + 5/16 . 3/16 – 3/16 . 4
    -> B =5/7 + 3/16(5/16 -4)
    -> B =  5/7 + 3/16 . {-59}/16
    -> B = 5/7 – 177/256
    -> B = 41/1792

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

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