tính 1/2*1/3*1/4 1/2*1/3:1/4 1/2:1/3*1/4 1/2:1/3:1/4

tính
1/2*1/3*1/4 1/2*1/3:1/4 1/2:1/3*1/4 1/2:1/3:1/4

2 bình luận về “tính 1/2*1/3*1/4 1/2*1/3:1/4 1/2:1/3*1/4 1/2:1/3:1/4”

  2. 1/2 xx 1/3 xx 1/4
    = (1 xx 1 xx 1)/(2 xx 3 xx 4)
    = 1/24
    1/2 xx 1/3 : 1/4
    = 1/6 : 1/4
    = 1/6 xx 4/1
    = (1 xx 4)/(6 xx 1)
    = 4/6 = 2/3
    1/2 : 1/3 xx 1/4
    = 1/2 xx 3/1 xx 1/4
    = (1 xx 3 xx 1)/(2 xx 1 xx 4)
    = 3/8
    1/2 : 1/3 : 1/4
    = 1/2 xx 3/1 : 1/4
    = 3/2 xx 4/1
    = (3 xx 4)/(2 xx 1)
    = 12/2 = 6
    color{blue}{@nguyen thi ngoc anh 2k12}
     

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