2/10 as a mixed number

0.2 if you mean 2/10 or 2.5 if you mean 10/2

The fraction 2/10 can't be converted into a mixed number since it's not an improper fraction.

If you mean 10/2, that can be converted into a mixed fraction, and that would 5 since the number 2 can be multiplied by 5 to get 10.