计算：|1/2-2/3|+|2/3-3/4|+|3/4-4/5|+…+|98/99-99/100|（写出过程）
计算：|1/2-2/3|+|2/3-3/4|+|3/4-4/5|+…+|98/99-99/100|（写出过程）
日期：2021-05-27 21:52:37 人气：1
|1/2-2/3|+|2/3-3/4|+|3/4-4/5|+…+|98/99-99/100|
=(2/3-1/2)+(3/4-2/3)+(4/5-3/4)+…+(99/100-98/99)
=-1/2+99/100
=49/100
=(2/3-1/2)+(3/4-2/3)+(4/5-3/4)+…+(99/100-98/99)
=-1/2+99/100
=49/100