(567+345*666)/(567*345+222)
问题描述:
(567+345*666)/(567*345+222)
简便运算哦.对了我会再加分
答
567×345+222
=567×345+(567-345)
=345×(567-1)+567
=345×566+567
所以,(567+345*666)/(567*345+222)=1