8/9-13/24+3/8-11/24 简便计算
问题描述:
8/9-13/24+3/8-11/24 简便计算
答
=8/9+3/8-(13/24+11/24)
=3/8+8/9-1
=3/8-1/9
=27/72-8/72
=19/72
还算简单了吧!