5又2分之1减2又20分之13减2.35的简算怎么算
问题描述:
5又2分之1减2又20分之13减2.35的简算怎么算
答
=5\1/2 - 2\13/20 - 2.35
=5\1/2-(2\13/20 + 2\7/20)
=5\1/2 - 5
=1/2
答
5又2分之1减2又20分之13减2.35
=5+1/2-2-1/20-2-35/100
=1+10/20-1/20-7/20
=1+2/20
=1.1