5.4除以0.25的简便运算
问题描述：
5.4除以0.25的简便运算
答
5.4÷0.25=（5.4*4）÷（0.25*4）=21.6÷1=21.6
答
5.4/0.25
=(5+0.4)/(1/4)
=5/(1/4)+0.4/(1/4)
=20+1.6
=21.6