|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9|

来源：学生作业学帮网编辑：学帮网时间：2024/05/14 17:19:02

|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