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

Toán Lớp 7: A=1-1/10-1/15-1/3-1/28-1/6-1/21

Toán Lớp 7: A=1-1/10-1/15-1/3-1/28-1/6-1/21

Comments ( 2 )

  1. A = 1 – 1/10 – 1/15 – 1/3 – 1/28 – 1/6 – 1/21
    A = 9/10 – 6/15 – 1/2 – 1/28 – 1/21
    A = 1/2 – 1/2 – 1/12
    A = -1/12
     

  2.  a = 1-1 . 1/10-1.1/15-1.1/3 .1/28 – 1. 1/6 -1.1/21
    a=1 – 1/10 -1.1/15-1.1/3.1/28-1.1/6-1.1/21

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