8乘以六分之五+五分之二除以4简算过程

问题描述:

8乘以六分之五+五分之二除以4简算过程

8*5/6+2/5÷4
=40/6+2/20
=40*10/60+2*3/60
=(400+6)/60
=406/60
=203/30