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

Toán Lớp 5: Tìm x: a)x-2\3-2\15 b)xX1\2=2\3

Toán Lớp 5: Tìm x:
a)x-2\3-2\15
b)xX1\2=2\3

Comments ( 2 )

  1. a) x -2/3 = 2/15
    x=2/15 + 2/3
    x=2/15 + 10/15
    x=12/15=4/5
    b)x xx 1/2 = 2/3
    x=2/3 : 1/2
    x=2/3 xx 2
    x=4/3
     

  2. a) x – 2/3 = 2/15
        x  = 2/15 + 2/3
        x = 4/5
    b) x × 1/2 = 2/3
        x = 2/3 : 1/2
        x = 4/3

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