(-60)÷(3/4+5/6-11/15-7/12)=?
问题描述:
(-60)÷(3/4+5/6-11/15-7/12)=?
答
=-60/〔(9+10-7)/12-11/15〕=-60/〔(15-11)/15〕=-60*15/4=-225
(-60)÷(3/4+5/6-11/15-7/12)=?
=-60/〔(9+10-7)/12-11/15〕=-60/〔(15-11)/15〕=-60*15/4=-225