(363+411x362)/(363x411-48) 的简算
问题描述:
(363+411x362)/(363x411-48) 的简算
答
(363+411x362)/(363x411-48)=(363+411x362)/(362x411+411-48) =(363+411x362)/(362x411+363)=1
答
(363+411x362)/(363x411-48)=[411x(363-1)+363]/(363x411-48)=[411x363-411+363]/(363x411-48)=[411x363-48]/(363x411-48)=1