1,11 + 1 can be interpreted in a couple of ways depending on the context. If you are treating "1,11" as a list of numbers, then adding 1 to each element would result in:

\[ (1 + 1), (11 + 1) = 2, 12 \]

So, the result would be:

\[ 2, 12 \]

If "1,11" is meant to be a single number with a comma as a decimal separator (common in some European countries), then it would be equivalent to 1.11 in the decimal system. Adding 1 to this would result in:

\[ 1.11 + 1 = 2.11 \]

So, the result would be:

\[ 2.11 \]

Please clarify if you meant something different!