3.5+7分之5×(0.4+3分之2-9分之4)×1.125 咋做 大圣来解
2个回答
展开全部
3.5+7分之5×(0.4+3分之2-9分之4)×1.125
=3.5+2/7×【2/5+（2/3-4/9）】×9/8
=3.5+2/7×【2/5+2/9】×9/8
=3.5+2/7×28/45×9/8
=3.5+8/45×9/8
=3.5+1/5
=3.7
=3.5+2/7×【2/5+（2/3-4/9）】×9/8
=3.5+2/7×【2/5+2/9】×9/8
=3.5+2/7×28/45×9/8
=3.5+8/45×9/8
=3.5+1/5
=3.7
本回答由网友推荐
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
3.5+7分之5×(0.4+3分之2-9分之4)×1.125
=3.5+2/7×【2/5+（2/3-4/9）】×9/8
=3.5+2/7×【2/5+2/9】×9/8
=3.5+2/7×28/45×9/8
=3.5+8/45×9/8
=3.5+1/5
=3.7
=3.5+2/7×【2/5+（2/3-4/9）】×9/8
=3.5+2/7×【2/5+2/9】×9/8
=3.5+2/7×28/45×9/8
=3.5+8/45×9/8
=3.5+1/5
=3.7
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
