3.14/2又15/16*5.875-(21又5/37-19.18)

来源：学生作业学帮网编辑：学帮网时间：2024/05/31 16:17:06

原式=3.14/（47/16）*（47/8）-782/37+19.18
=3.14*（16/47）*（47/8）-782/37+19.18
=1.57+19.18-782/37
=20.75-782/37
=-14.25/37