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
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 + 5/6 + 1/2 = 2
2/3 + 1/2 = 1 1/6 or one and one sixth.
2/3 + 5/6 + 1/2 = 2