Answer:
115/12, or 9 7/12
Explanation:
Let's start by turning all of these into improper fractions.
2 3/6 becomes 15/6
2 2/3 becomes 8/3
4 5/12 becomes 53/12
Now we need to get a common denominator by turning them all to x/12
15/6 becomes 30/12, because we multiply it by 2/2
8/3 is a bit trickier because we have to multiply it by 4 in order to reach x/12, but it turns out to be 32/12 after multiplying it by 4/4
53/12 is already x/12, so we don't have to simplify this one.
30/12 + 32/12 + 53/12 = 115/12, or 9 7/12