A recipe calls for 2 2/3 cups of milk. Chef tells you to increase it by 2 1/2

If I understand this correctly, it's requiring you to add the fractions.

Here is a quick way to find your answer:

1. Find a common denominator - 6.

2. Find out what you need to multiply your denominators to get to that number. - multiply 2/3 by 2, and 1/2 by 3. You'll get 2 and 4/6, and 2 and 3/6.

3. Add new fractions together. - 4/6 plus 3/6 is 7/6. 6 can go into 7 one time, so you'll have 1 and 1/6.

4. Add all numbers together. 2 plus 2 plus 1 and 1/6 equals 5 and 1/6.