7又7/12+1.09+1又5/12-91/100等于多少?
4个回答
展开全部
解:7又7/12+1.09+1又5/12-91/100等于( 459/50 ),【即等于9.18】
∵已知需求出7又7/12+1.09+1又5/12-91/100等于多少
∴7又7/12 + 1.09 + 1又5/12 - 91/100
= (7×12+7)/12 + (1×100+9)/100 + (1×12+5)/12 - 91/100
= 91/12 + 109/100 + 17/12 - 91/100
= (91/12 + 17/12)+(109/100 - 91/100)
= 108/12 + 18/100
= (108×25)/(12×25)+(18×3)/(100×3)
= 2700/300 + 54/300
= 2754/300
= 459/50
= 9.18
答:7又7/12+1.09+1又5/12-91/100等于459/50,【即等于9.18】
∵已知需求出7又7/12+1.09+1又5/12-91/100等于多少
∴7又7/12 + 1.09 + 1又5/12 - 91/100
= (7×12+7)/12 + (1×100+9)/100 + (1×12+5)/12 - 91/100
= 91/12 + 109/100 + 17/12 - 91/100
= (91/12 + 17/12)+(109/100 - 91/100)
= 108/12 + 18/100
= (108×25)/(12×25)+(18×3)/(100×3)
= 2700/300 + 54/300
= 2754/300
= 459/50
= 9.18
答:7又7/12+1.09+1又5/12-91/100等于459/50,【即等于9.18】
展开全部
7又7/15+1.09+1又5/12-91/100
=8+7/15+1.09+5/12-0.91
=8.18+(7/15+5/12)
=8.18+(7/5+5/4)/3
=8.18+(7×4+5×5)/60
=8.18+53/60
=8+(9/5+53/6)/10
=8+(54+265)/300
=9+19/300
=8+7/15+1.09+5/12-0.91
=8.18+(7/15+5/12)
=8.18+(7/5+5/4)/3
=8.18+(7×4+5×5)/60
=8.18+53/60
=8+(9/5+53/6)/10
=8+(54+265)/300
=9+19/300
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
原式=7+1+1+7/12+5/12+9/100-91/100
=10-41/50
=9又9/50
或9.18
=10-41/50
=9又9/50
或9.18
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
答:7(7/12)+1.09+1(5/12)-91/100
=7(7/12)+1(5/12)+1.09-0.91
=9+0.18
=9.18
(望采纳)
=7(7/12)+1(5/12)+1.09-0.91
=9+0.18
=9.18
(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