It is 4 and one third.
2 and 2 thirds
2/3
2/3
1/3 plus 2/3 plus 3/3 = two
2
2 and 5/6
One third plus one third equals two thirds.
One-third plus three-ninths is 2/3.7/9
2 and 1/3
2/9
2 1/3 + 2 1/3 = 4 2/3
if you add one third and one third you get two sixths then if you divide it by 2 each you will get it back to one thirds