Working with mixed numbers is not much more difficult than working with fractions. You can convert mixed numbers to decimal values just like you can convert fractions to decimals.
2 1/2 = 2.5 2 1/5 = 2.2 3 2/5 = 3.4 1 3/5 = 1.6 2 4/5 = 2.8 3 1/10 = 3.1 1 3/10 = 1.3 1 4/10 = 1.4
2 1/2 = 2 5/10 = 2.5 4 3/5 = 4 6/10 = 4.6
Now you get to try a few for yourself.