1/3+1/5+1/7+1/9+1/11+1/33+1/35+1/45+1/55+1/77
问题描述：
1/3+1/5+1/7+1/9+1/11+1/33+1/35+1/45+1/55+1/77
答
5*7*9*11=3456
1155/3456+693/3456+495/3456+385/3456+315/3456
=3043/3456
i`m sorry 粗心了 犯小学错误 呵呵
答
1L第一步就错了..5*7*9*11=34651/3+1/5+1/7+1/9+1/11+1/33+1/35+1/45+1/55+1/77=1155/3465+693/3465+495/3465+385/3465+315/3465+105/3465+99/3465+77/3465+63/3465+45/3465=3432/3465=104/105