7/8+1/6-5/9,要过程3/4+5/6-7/12,17/13-(4/13+2/18)?
3个回答
展开全部
●7/8+1/6-5/9
=(21/24+4/24)-5/9
=25/24-5/9
=75/72-40/72
=35/72
●3/4+5/6-7/12
=9/12+10/12-7/12
=12/12
=1
●17/13-(4/13+2/18)
=(17/13-4/13)-1/9
=1-1/9
=8/9
=(21/24+4/24)-5/9
=25/24-5/9
=75/72-40/72
=35/72
●3/4+5/6-7/12
=9/12+10/12-7/12
=12/12
=1
●17/13-(4/13+2/18)
=(17/13-4/13)-1/9
=1-1/9
=8/9
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
2020-07-01 · 知道合伙人教育行家
关注
展开全部
7/8+1/6-5/9
=21/24+4/24-5/9
=25/24-5/9
=75/72-40/72
=35/72
3/4+5/6-7/12
=9/12+10/12-7/12
=19/12-7/12
=12/12
=1
17/13-(4/13+2/18)
=17/13-4/13-2/18
=1-2/18
=8/9
=21/24+4/24-5/9
=25/24-5/9
=75/72-40/72
=35/72
3/4+5/6-7/12
=9/12+10/12-7/12
=19/12-7/12
=12/12
=1
17/13-(4/13+2/18)
=17/13-4/13-2/18
=1-2/18
=8/9
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