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

Toán Lớp 6: A, ( 5/11 -3/7 +4)-(4/7+16/11-2) B)3/47+3/710+3/37.43

Home/ Toán Lớp 6: A, ( 5/11 -3/7 +4)-(4/7+16/11-2) B)3/47+3/710+3/37.43

Toán Lớp 6: A, ( 5/11 -3/7 +4)-(4/7+16/11-2) B)3/47+3/710+3/37.43

Tháng Một 27, 2023 Toán học 2 Comments 0 views

Toán Lớp 6: A, ( 5/11 -3/7 +4)-(4/7+16/11-2)
B)3/47+3/710+3/37.43

Comments ( 2 )

  1. thanhtung
    thanhtung
    27 Tháng Một, 2023 at 9:08 chiều
    Reply
    a)
    (5/11 – 3/7 + 4) – (4/7 + 16/11 – 2)
    = 5/11 – 3/7 + 4 – 4/7 – 16/11 + 2
    = (5/11 – 16/11) – (3/7 + 4/7) + (4+2)
    = -1 – 1 + 6
    = -2 + 6
    = 4
    b)
    3/47 + 3/710 + 3/37 . 43
    = 3/47 + 3/710 + 129/37
    = 78810/1234690 + 5217/1234690 + 4304730/1234690
    = 4388757/1234690

  2. lantrungbach
    lantrungbach
    27 Tháng Một, 2023 at 9:07 chiều
    Reply
    Giải đáp:
    $\\$
    a,
    (5/11 – 3/7 + 4) – (4/7+16/11 – 2)
    = 5/11 -3/7 + 4 – 4/7 -16/11+2
    = (5/11-16/11) + (-3/7 – 4/7) + (4+2)
    = -1 – 1 + 6
    = -2 + 6
    = 4
    b,
    3/47 + 3/710 + 3/37 × 43
    = 3/47 + 3/710 + 129/37
    = (3×26270)/(47 × 26270) + (3 × 1739)/(710 × 1739) + (129 × 33370)/(37 × 33370)
    = 78810/1234690 + 5217/1234690 + 4304730/1234690
    = (78810 + 5217 + 4304730)/1234690
    = 4388757/1234690
     

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

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