It is 4 and one third.
2 and 2 thirds
2/3
2/3
1/3 plus 2/3 plus 3/3 = two
2
One third plus one third equals two thirds.
2 and 5/6
One-third plus three-ninths is 2/3.7/9
2 and 1/3
2 1/3 + 2 1/3 = 4 2/3
2/9
One third plus one third equals two thirds. Similarly, one cow plus one cow equals two cows, and one book plus one book equals two books. Have you learned anything today ?