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

Toán Lớp 6: a x – 5/12 =2/9 b x+ 3/4=17/2 c x x7/4 =21/36 d x :27/16 =8/9 làm hẳn ra nha mọi nguòi

Toán Lớp 6: a x – 5/12 =2/9 b x+ 3/4=17/2 c x x7/4 =21/36 d x :27/16 =8/9 làm hẳn ra nha mọi nguòi

Comments ( 2 )

  1. a)
    x – 5/12 = 2/9
    => x      = 2/9 + 5/12
    => x      = 23/36
    b)
    x + 3/4 = 17/2
    => x     = 17/2 – 3/4
    => x     = 31/4
    c)
    x . 7/4 = 21/36
    => x   = 21/36 : 7/4
    => x   = 1/3
    d) x : 27/16 = 8/9
    => x           = 8/9 . 27/16
    => x           = 3/2      

  2. a)
    x-5/12=2/9
    x=2/9+5/12
    x=23/36
    b)
    x+3/4=17/2
    x=17/2-3/4
    x=31/4
    c)
    x xx7/4=21/36
    x=21/36:7/4
    x=1/3
    d)
    x:27/16=8/9
    x=8/9xx27/16
    x=3/2

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