四分之三加五分之六加二分之七,简便运算?
4个回答
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简便运算:
3/4+6/5+7/2
=3/4+7/2+6/5
=3/4+14/4+6/5
=17/4+6/5
=4+1/4+1+1/5
=5+1/4+1/5
=5+5/20+4/20
=5+9/20
=5又9/20
3/4+6/5+7/2
=3/4+7/2+6/5
=3/4+14/4+6/5
=17/4+6/5
=4+1/4+1+1/5
=5+1/4+1/5
=5+5/20+4/20
=5+9/20
=5又9/20
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3/4+6/5+7/2
=15/20+24/20+70/20
=109/20
3/4+6/5+7/2
=0.75+1.2+3.5
=5.45
=15/20+24/20+70/20
=109/20
3/4+6/5+7/2
=0.75+1.2+3.5
=5.45
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展开全部
3/4+6/5+7/2
=3/4+7/2+6/5
=3/4+14/4+6/5
=17/4+6/5
=4+1/4+1+1/5
=5+1/4+1/5
=5+5/20+4/20
=5+9/20
=5又9/20
=3/4+7/2+6/5
=3/4+14/4+6/5
=17/4+6/5
=4+1/4+1+1/5
=5+1/4+1/5
=5+5/20+4/20
=5+9/20
=5又9/20
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
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