How do I figure 11 + 1/3?

Question

This is the frist part of the problem.  The whole problem looks like this....

9/4 { ( 11 + 1/3) } -6   I understand the rest, I just can't remember how to do a whole number and a fraction.

Answer 1

just add a 1 under 11 and multiply it as a fraction

Answer 2

9 1/2 - 16 1/4