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

Toán Lớp 7: Rút gọn PS C=5-5/13+5/19-5/27:11-11/3+11/9-11/27 D=6/101+6/123+6/134:11/101+11/123+11/134 Các anh chị làm hộ em với ạ

Tháng Mười Hai 3, 2022 Toán học 2 Comments 0 views

Toán Lớp 7: Rút gọn PS
C=5-5/13+5/19-5/27:11-11/3+11/9-11/27
D=6/101+6/123+6/134:11/101+11/123+11/134
Các anh chị làm hộ em với ạ

Comments ( 2 )

  1. baoquyen
    baoquyen
    3 Tháng Mười Hai, 2022 at 9:38 chiều
    Reply
    $\\$
    C = (5 – 5/13 + 5/19 – 5/27) : (11 – 11/3 + 11/9 – 11/27)
    -> C = (5 – 5/13 + 5/19 – 5/27)/(11 – 11/3 + 11/9 – 11/27)
    -> C=  (5 (1 – 1/13 + 1/19 – 1/27) )/(11 (1 – 1/3  + 1/9 – 1/27) )
    -> C = (5.1)/(11.1)
    ->C=5/11
    Vậy C=5/11
    $\\$
    D = (6/101 + 6/123 + 6/134) : (11/101 + 11/123 + 11/134)
    -> D=(6/101 + 6/123 + 6/134)/(11/101 + 11/123 + 11/134)
    ->D=(6 (1/101 + 1/123 + 1/134) )/(11 (1/101 +  1/123 + 1/134) )
    ->D=(6.1)/(11.1)
    ->D=6/11
    Vậy D=6/11

  2. diemmyhoa
    diemmyhoa
    3 Tháng Mười Hai, 2022 at 9:38 chiều
    Reply
    C = (5 – 5/13 + 5/19 – 5/27)/(11 – 11/3 + 11/9 – 11/27)
    C = (5 . (1 – 1/13 + 1/19 – 1/27))/(11 . (1 – 1/13 + 1/19 – 1/27))
    C = 5/11
    D = (6/101 + 6/123 + 6/134)/(11/101 + 11/123 + 11/134)
    D = (6 . (1/101 + 1/123 + 1/134))/(11 . (1/101 + 1/123 + 1/134))
    D = 6/11

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

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