The answer is 9 1/6 (or the improper fraction 55/6).
2 1/2 = 5/2 = 15/6
6 2/3 = 20/3 = 40/6
15/6 + 40/6 = 55/6 = 9 plus 1/6 remaining
too hard
1 2/3
4 and 1 sixth
7 and a half
1/2 + 1/2 + 2/3 = 1 2/3 or one and two thirds.
4 and 1/6
1/2 + 3/3 is 1 1/2 or 1.5
2/3 + 5/6 + 1/2 = 2
4 + 2/3 + 1/2 = 5 and 1/6
5 and a 1/2 plus 4 and 2/3 = 10 and 1/6
2/3 + 1/2 = 1 1/6 or one and one sixth.
2/3 + 5/6 + 1/2 = 2