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

Toán Lớp 6: A=(9/2-21/4.58/55).25/36+17/10

Tháng Hai 19, 2023 Toán học 2 Comments 0 views

Toán Lớp 6: A=(9/2-21/4.58/55).25/36+17/10

Comments ( 2 )

  1. tonhu12
    tonhu12
    19 Tháng Hai, 2023 at 6:31 sáng
    Reply
    A = ( 9/2 – 21/4 . 58/55 ) . 25/36 + 17/10
      =( 9/2 – 609/110) . 25/36 + 17/10
    =-57/55 . 25/36 + 17/10
    = -95/132 + 17/10
    =647/660

  2. ngoclanquynh
    ngoclanquynh
    19 Tháng Hai, 2023 at 6:30 sáng
    Reply
    Giải đáp:
    A = (9/2 – 21/4 . 58/55).25/36 + 17/10
    A = (9/2 – 609/110) . 25/36 + 17/10
    A = (495/110 – 609/110) . 25/36 + 17/10
    A = -57/55 . 25/36 + 17/10
    A = -95/132 + 17/10
    A = -475/660 + 1122/660
    = 647/660
     

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

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