作业帮3.75-[(-8又3/7)+(-7.5)+(-21又4/7)+(3又1/2)]+0.25=?
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 10:05:48
![3.75-[(-8又3/7)+(-7.5)+(-21又4/7)+(3又1/2)]+0.25=?](/uploads/image/z/55525-13-5.jpg?t=3.75-%5B%28-8%E5%8F%883%2F7%29%2B%28-7.5%29%2B%28-21%E5%8F%884%2F7%29%2B%283%E5%8F%881%2F2%29%5D%2B0.25%3D%3F)
3.75-[(-8又3/7)+(-7.5)+(-21又4/7)+(3又1/2)]+0.25=?
3.75-[(-8又3/7)+(-7.5)+(-21又4/7)+(3又1/2)]+0.25=?
3.75-[(-8又3/7)+(-7.5)+(-21又4/7)+(3又1/2)]+0.25=?
3.75-[(-8又3/7)+(-7.5)+(-21又4/7)+(3又1/2)]+0.25
=3.75+0.25-[-8-3/7-7-1/2-21-4/7+3+1/2]
=4-(3-8-7-21-3/7-4/7)
=4-(3-37)
=4+34
=38