巧算75乘三十七分之十六加三十七分之二十一乘73等于多少？

75×16/37-21/37×73
=(74+1)*16/37-21/37*(74-1)
=74*16/37+1*16/37-21/37*74+21/37*1
=32+16/37-42+21/37
=32-42+16/37+21/37
=-10+1
=-9本回答被网友采纳