(0.5*7*0.45)除以(1.5*0.
问题描述:
(0.5*7*0.45)除以(1.5*0.
答
(0.5*7*0.45)除以(1.5*0.7*3)
=(0.5*7*0.45)除以(7*4.5)
=0.5