5.125-(3又2分之1+8分之3)怎么算
问题描述:
5.125-(3又2分之1+8分之3)怎么算
答
5.125-(3又2分之1+8分之3)
=5又1/8-3又1/2-3/8
=41/8-3/8-7/2
=38/8-7/2
=(38-28)/8
=10/8
=5/4
=1.25