7/9-(1/4-2/9)简便3-1/3-2/3简便7/6-1/5-1/6简便?
2020-08-21
展开全部
简便计算过程如下
7/9-(1/4-2/9)
=7/9-1/4+2/9
=(7/9+2/9)-1/4
=1-1/4
=3/4
3-1/3-2/3
=3-(1/3+2/3)
=3-1
=2
7/6-1/5-1/6
=(7/6-1/6)-1/5
=6/6-1/5
=1-1/5
=4/5
不懂可以追问,望采纳
7/9-(1/4-2/9)
=7/9-1/4+2/9
=(7/9+2/9)-1/4
=1-1/4
=3/4
3-1/3-2/3
=3-(1/3+2/3)
=3-1
=2
7/6-1/5-1/6
=(7/6-1/6)-1/5
=6/6-1/5
=1-1/5
=4/5
不懂可以追问,望采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询