When the Rap asked:

If 1+1=2, why doesn't 2+2=3?

Amos answered....

Because 1+1=2.

However, I would like to interject that sometimes 1 + 1 = 11; both in the case of my parents marriage and in base 2.

Is there a numerical system where 2 + 2 could equal 3? I wonder.....It would probably have to be based on fractions.