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

Toán Lớp 5: ( 1 va 3/5 +2 va 1/5) x 1va 1/10+(1 va 7/10-4/5) :3/7

Toán Lớp 5: ( 1 va 3/5 +2 va 1/5) x 1va 1/10+(1 va 7/10-4/5) :3/7

Comments ( 2 )

  1. (1(3)/(5)+2(1)/(5))xx1(1)/(10)+(1(7)/(10)-4/5):3/7
    =(8/5+(11)/5)xx(11)/(10)+((17)/(10)-4/5):3/7
    =(19)/5xx(11)/(10)+9/(10)xx7/3
    =(209)/(50)+(21)/(10)
    =(157)/(25)
     

  2. Giải đáp:
    ( 1 3/5 +2 1/5) × 1 1/10+(1 7/10-4/5) :3/7
    = 19/5 × 11/10 + 9/10 : 3/7
    = 209/50 + 21/10
    = 157/25

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

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