|咋么求这类题1/10-1/9|+|1/9-1/8|+|1/8-1/7|+...+|1/3-1/2\怎么做

|咋么求这类题1/10-1/9|+|1/9-1/8|+|1/8-1/7|+...+|1/3-1/2\怎么做
|咋么求这类题1/10-1/9|+|1/9-1/8|+|1/8-1/7|+...+|1/3-1/2\怎么做

|咋么求这类题1/10-1/9|+|1/9-1/8|+|1/8-1/7|+...+|1/3-1/2\怎么做
绝对值相加=正数;
a-b>=0,|a-b|=a-b,
a-b

根据法则先去绝对值