(2002002+200.200)除以(800800+800.800.)

问题描述:

(2002002+200.200)除以(800800+800.800.)

(200200+200.200)÷(800800+800.800.)
=200400.2÷8001600.8
=2002*(100.1)÷【2002*(400.4)】
=1/4