789+456*788/789*456+333=?
问题描述:
789+456*788/789*456+333=?
答
(789+456*788)/(789*456+333)
=[789+456*(789-1)]/(789*456+333)
=(789+456*789-456)/(789*456+333)
=(456*789+333)/(789*456+333)
=1