14-8又9分之5-2又9分之4 等于多少?

问题描述:

14-8又9分之5-2又9分之4 等于多少?

14-8又9分之5-2又9分之4
= 14-8- 5/9 - 2 - 4/9
= 14-8 - 2 - (4/9+5/9)
= 4-1
=3