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

Toán Lớp 7: 8/3:25/9-7/9:8/3+3 1/4 Giúp mk vs

Toán Lớp 7: 8/3:25/9-7/9:8/3+3 1/4
Giúp mk vs

Comments ( 2 )

  1. Lời giải chi tiết:
    8/3:25/9-7/9:8/3+31/4
    =8/(3).(9)/25-7/(9).(3)/8+13/4
    =24/25-7/24+13/4
    =401/600+13/4
    =2351/600

  2. 8/3 : 25/9 -7/9 : 8/3 +3 1/4
    =8/3 . 9/25 -7/9 . 3/8 +(3.4+1)/4
    =24/25-7/24+13/4
    =576/600-175/600+1950/600
    =2351/600

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