(-1/2)+(-51/5)+2-(-31/5)+(-4.5)-(21/3)

来源：学生作业帮助网编辑：六六作业网时间：2024/12/19 07:58:13

(-1/2)+(-51/5)+2-(-31/5)+(-4.5)-(21/3)(-1/2)+(-51/5)+2-(-31/5)+(-4.5)-(21/3)(-1/2)+(-51/5)+2-(-31/5)

(-1/2)+(-51/5)+2-(-31/5)+(-4.5)-(21/3)
(-1/2)+(-51/5)+2-(-31/5)+(-4.5)-(21/3)

(-1/2)+(-51/5)+2-(-31/5)+(-4.5)-(21/3)
54