# The following fractions are written in a row: 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9, 1/10, 1/11﻿﻿Prove that you can't insert the signs + and - between these numbers so that the result...

The following fractions are written in a row:

1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9, 1/10, 1/11

﻿﻿Prove that you can't insert the signs + and - between these numbers so that the result would be 0.