分子为1/22+1/33+1/44+1/55+1/66+1/77+1/88+1/99,分母为1/2222+1/3333+1/4444+1/5555+1/6666+1/7777+1/8888+1/9999,

分类: 作业答案 • 2021-12-19 17:16:11

问题描述：

分子为1/22+1/33+1/44+1/55+1/66+1/77+1/88+1/99,
分母为1/2222+1/3333+1/4444+1/5555+1/6666+1/7777+1/8888+1/9999,

答