计算1.(-1/30)/(1/3-1/5-1/10+1/15)
2个回答
展开全部
1.(-1/30)/(1/3-1/5-1/10+1/15)
=(-1/30)/(10/30-6/30-3/30+2/30)
=-)1/30)/(3/30)
=-1/3\
2.(3/5-1/2-7/12)×(60×3/7-60×1/7+60×5/7)
=(3/5-1/2-7/12)×60×(3/7--1/7+5/7)
=(3/5×60-1/2×60-7/12×60)×1
=36-30-35
=-29
=(-1/30)/(10/30-6/30-3/30+2/30)
=-)1/30)/(3/30)
=-1/3\
2.(3/5-1/2-7/12)×(60×3/7-60×1/7+60×5/7)
=(3/5-1/2-7/12)×60×(3/7--1/7+5/7)
=(3/5×60-1/2×60-7/12×60)×1
=36-30-35
=-29
本回答被提问者和网友采纳
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