(165+3/4+3/7)/(3/4+3/7)
=165/(3/4+3/7)+(3/4+3/7)/(3/4+3/7)
=165*4*7/(3*7+3*4)+1
=140+1
=141你确定吗?确定
(165+3/4+3/7)/(3/4+3/7)= 请用简便运算.
(165+3/4+3/7)/(3/4+3/7)= 请用简便运算.
数学人气:997 ℃时间:2020-05-24 13:29:54
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