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

Toán Lớp 5: 1/2 + 1/3 + 1/6 5/12 + 5/6 – 3/4 1-(1/5 + 1/2)

Toán Lớp 5: 1/2 + 1/3 + 1/6
5/12 + 5/6 – 3/4
1-(1/5 + 1/2)

Comments ( 2 )

  1. Giải đáp:+Lời giải và giải thích chi tiết:
     1/2+1/3+1/6
    =3/6 + 2/6+ 1/6
    =6/6 = 1
    ————————
    5/12 + 5/6 – 3/4
    =5/12 + 10/12 – 9/12
    =6 /12 =1/2
    ————————-
    1-(1/5+1/2)
    =1-(2/10 + 5/10)
    =1- 7/10
    =10/10 – 7/10
    =3/10

  2. Answer
    1/2 + 1/3 + 1/6
    = 3/6 + 2/6 + 1/6
    = {3+2+1}/6
    = 6/6
    = 1
    _________________
    5/12 + 5/6 – 3/4
    = 5/12 + 10/12 – 9/12
    = {5+10-9}/12
    = 1/2
    __________________
    1 – (1/5 + 1/2)
    = 1 – (2/10 + 5/10)
    = 10/10 – 7/10
    = 3/10
     

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