好吧问答库 > 1⼀2+1⼀3+1⼀7+1⼀11+1⼀17+1⼀43+1⼀59+1⼀1805-1⼀1805*1806-1⼀59*1122=?

1⼀2+1⼀3+1⼀7+1⼀11+1⼀17+1⼀43+1⼀59+1⼀1805-1⼀18051806-1⼀591122=?

2026年09月26日 18:34

有1个网友回答

网友（1）：

1/2+1/3+1/7+1/11+1/17+1/43+1/59+1/1805-(1/1805)*1806-(1/59)*1122
=1/2+1/3+1/7+1/11+1/17+1/43+[1/1805-(1/1805)*1806]+[1/59-(1/59)*1122]
=1/2+1/3+1/7+1/11+1/17+1/43-1-19
=1/2+1/3-1+(1/11+1/17-1)-18
=-1/6-159/187-18
=-18又(1141/1152)