73×37分之21+37分之16×75 怎么简算
问题描述:
73×37分之21+37分之16×75 怎么简算
答
73×21/37+16/37×75
=73×21/37+16/37×(73+2)
=73×21/37+16/37×73+16/37×2
=73×(21/37+16/37)+16/37×2
=73×1+16/37×2
=73又32/37