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

Toán Lớp 7: `a) (-7/12 + 0,25 ):2/3` `b)` $\sqrt{\dfrac{4}{9} }$ `+(1/2)^3-|(-3)/11|. 11/8`

Home/ Toán Lớp 7: `a) (-7/12 + 0,25 ):2/3` `b)` $\sqrt{\dfrac{4}{9} }$ `+(1/2)^3-|(-3)/11|. 11/8`

Toán Lớp 7: `a) (-7/12 + 0,25 ):2/3` `b)` $\sqrt{\dfrac{4}{9} }$ `+(1/2)^3-|(-3)/11|. 11/8`

Tháng Tư 18, 2022 Toán học 2 Comments 0 views

Toán Lớp 7: a) (-7/12 + 0,25 ):2/3
b) $\sqrt{\dfrac{4}{9} }$ +(1/2)^3-|(-3)/11|. 11/8

Comments ( 2 )

  1. tuyetanhthu
    tuyetanhthu
    18 Tháng Tư, 2022 at 11:51 sáng
    Reply
    a)
    (-7/12+0,25):2/3
    =(-7/12+1/4):2/3
    =(-7/12+3/12):2/3
    =-1/3:2/3
    =-1/3xx3/2
    =-1/2
    b)
    sqrt{4/9}+(1/2)^3-|(-3)/11|. 11/8
    =2/3+1/8-3/11. 11/8
    =2/3+1/8-3/8
    =5/12

  2. tonhu12
    tonhu12
    18 Tháng Tư, 2022 at 11:51 sáng
    Reply
    a)(-7/12+0,25):2/3
    =(-7/12+25/100). 3/2
    =(-7/12+1/4). 3/2
    =(-7/12+3/12). 3/2
    =-4/12 . 3/2
    =-1/3 . 3/2
    =-1/2
    b)\sqrt{4/9}+(1/3)^3-|(-3)/11|. 11/8
    =\sqrt{(2/3)^2}+1/8-3/11 . 11/8
    =2/3+1/8-3/8
    =2/3-2/8
    =16/24-6/24
    =10/24
    =5/12

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

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