(15/32*16/35+1/7)/50%
=(3/14+1/7)/1/2
=(3/14+2/14)×2
=5/14×2
=5/7
(15/32*16/35+1/7)/50%的簡便運算急!
(15/32*16/35+1/7)/50%的簡便運算急!
數(shù)學人氣:818 ℃時間:2020-03-29 18:25:51
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