(363+411x362)/(363x411-48) 的简算

问题描述:

(363+411x362)/(363x411-48) 的简算

(363+411x362)/(363x411-48)=[411x(363-1)+363]/(363x411-48)=[411x363-411+363]/(363x411-48)=[411x363-48]/(363x411-48)=1