23/10-(3/10+2/9) 能简便计算的要简便计算

问题描述:

23/10-(3/10+2/9) 能简便计算的要简便计算

23/10-(3/10+2/9)
=23/10-3/10-2/9
=20/10-2/9
=2-2/9
=18/9-2/9
=16/9