1/55+2/55+3/55...+10/55-11/155-12/155-13/155-...-20/155
来源：学生作业帮助网 编辑：六六作业网 时间：2024/07/08 20:04:52
1/55+2/55+3/55...+10/55-11/155-12/155-13/155-...-20/1551/55+2/55+3/55...+10/55-11/155-12/155-13/155-
1/55+2/55+3/55...+10/55-11/155-12/155-13/155-...-20/155
1/55+2/55+3/55...+10/55-11/155-12/155-13/155-...-20/155
1/55+2/55+3/55...+10/55-11/155-12/155-13/155-...-20/155
1+2+3..+10=55
11+12+13+...20=155
所以该式化为55/55-155/155=0答案是0