17/25×5/37+8/25×17/37+17/37×2/25
=17/25×5/37+17/25×8/37+17/25×2/37
=17/25×(5/37+8/37+2/37)
=17/25×15/37
=51/185
简便运算:17/25×5/37+8/25×17/37+17/37×2/25
简便运算:17/25×5/37+8/25×17/37+17/37×2/25
数学人气:591 ℃时间:2019-08-18 11:12:22
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