|10/11-11/12|+|11/12-12/13|+|12/13-13/14|+…+|98/99-99/100|等于几
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 17:22:04
![|10/11-11/12|+|11/12-12/13|+|12/13-13/14|+…+|98/99-99/100|等于几](/uploads/image/z/322436-20-6.jpg?t=%7C10%2F11-11%2F12%7C%2B%7C11%2F12-12%2F13%7C%2B%7C12%2F13-13%2F14%7C%2B%E2%80%A6%2B%7C98%2F99-99%2F100%7C%E7%AD%89%E4%BA%8E%E5%87%A0)
|10/11-11/12|+|11/12-12/13|+|12/13-13/14|+…+|98/99-99/100|等于几
|10/11-11/12|+|11/12-12/13|+|12/13-13/14|+…+|98/99-99/100|等于几
|10/11-11/12|+|11/12-12/13|+|12/13-13/14|+…+|98/99-99/100|等于几
=11/12-10/11+12/13-11/12+.+99/100-98/100
=99/100-10/11
=89/1100