请计算.快 .0.75×18÷0.15 2.07÷0.23÷0.45
问题描述：
请计算.快 .0.75×18÷0.15 2.07÷0.23÷0.45
答
0.75×18÷0.15
=0.75÷0.15×18
=5×18
=90
2.07÷0.23÷0.45
=0.9÷0.45
=2