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

Toán Lớp 6: Tính 9,6×0,2×15,4×2×15,4:0,25/30,8:0,5×7,7:0,125×5×6

Toán Lớp 6: Tính 9,6×0,2×15,4×2×15,4:0,25/30,8:0,5×7,7:0,125×5×6

Comments ( 2 )

  1. (9,6×0,2×15,4×2×15,4:0,25)/(30,8:0,5×7,7:0,125×5×6)
    =(1,6×6×5×7,7×2×2×15,4×4)/(15,4×2×2×7,7×4×2×5×6)
    =(1,6×\cancel{6×5×7,7×2×2×15,4×4})/(\cancel{15,4×2×2×7,7×4×}2×\cancel{5×6)
    =(1,6)/2
    =4/5
     

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