11/15除(3/5+2/3乘3/4)简便计算
问题描述:
11/15除(3/5+2/3乘3/4)简便计算
答
11/15÷(3/5+2/3×3/4)
= 11/15÷(3/5+1/2)
= 11/15÷11/10
= 11/15×10/11
= 2/3
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