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

Toán Lớp 6: n, 1/2 – -2/5 + 1/3 + 5/7 – -1/6) + -4/35 + 1/41 Làm hay + nhanh nhất mình sẽ cho ctlhn nhá

Toán Lớp 6: n, 1/2 – -2/5 + 1/3 + 5/7 – -1/6) + -4/35 + 1/41
Làm hay + nhanh nhất mình sẽ cho ctlhn nhá

Comments ( 2 )

  1. Giải +giải chi tiết
    N,1/2- -2/5+1/3+5/7- -1/6+(-4/35)+1/41
    =1/2+2/5+1/3+5/7+1/6-4/35+1/41
    =(1/2+1/3+1/6)+(2/5+5/7-4/35)+1/41
    =(3+2+1/6)+(14+25-4/35)+1/41
    =6/6 +35/35 +1/41
    =1+1 +1/41
    =41+41+1/41
    =83/41

  2. Giải đáp:
     n, (1/2 – (-2)/5 + 1/3 + 5/7 – (-1)/6) + (-4)/35 + 1/41
    = 1/2 – (-2)/5 + 1/3 + 5/7 – (-1)/6 + (-4)/35 + 1/41
    = 3/6 – (-14)/35 + 2/6 + 25/35 – (-1)/6 + (-4)/35 + 1/41
    = (3/6 + 2/6 – (-1)/6) + (-(-14)/35 + 25/35 – 4/35) + 1/41)
    = 6/6 + 35/35 + 1/41
    = 1 + 1 + 1/41 = 2 + 1/41
    = 82/41 + 1/41
    = 83/41

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

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