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

Toán Lớp 7: `(-2).(-38)/21.(-7)/4.(-3/8)=?` tính giúp chứ lười :v

Toán Lớp 7: (-2).(-38)/21.(-7)/4.(-3/8)=?
tính giúp chứ lười :v

Comments ( 2 )

  1. (-2).(-38)/21.(-7)/4.(-3/8)
    =((-2).(-38))/21*((-7)*(-3))/(4*8)
    =76/21*21/32
    =19/8

  2. (-2).(-38)/(21).(-7)/(4).((-3)/8)
    =((-38).(-7))/21.4 .(((-2).(-3))/8)
    =38/3.4 . 3/4
    =38.3/(3.4.4)
    =38/16
    =19/8

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

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