|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9|
来源：学生作业帮助网 编辑：六六作业网 时间：2024/05/14 17:00:38
|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9||1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9||1/3-1/2|+|1
|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9|
|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9|
|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9|
|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9|
＝1/2-1/3+1/3-1/4+……+1/9-1/10
＝1/2-1/10
＝2/5