Answer: 5 5/9
Step-by-step explanation: This is just in my way of answering this: 2 8/9 and 2 2/3 need to be made into improper fractions, so 2 8/9 as an improper fraction is 26/9. 2 2/3 as an improper fraction is 8/3. To add these fractions, you must find the common denominator! The common denominator is 9, and since 26/9 already has the denominator 9, you need to make 8/3 have a denominator of 9. So, 3 x 3 is 9, and 8 x 3 is 24! 24/9 + 26/9 is 50/9. 50/9 needs to be converted back into a mixed number, so 50/9 will become 5 5/9! That's the answer! :)