0.375除以3/8的商再加上1.1再乘1/4积是多少
问题描述:
0.375除以3/8的商再加上1.1再乘1/4积是多少
答
(0.375÷3/8+1.1)×1/4
=(1+1.1)×1/4
=2.1×1/4
=21/40