6/5
1 + 1/2 =
1 + 1/3 =
2 - 1/3=
1/2
5/3
2 + 1/2 =
1 - 1/2 =
2 + 1/3=
3/2
7/3
5/2
2/3
4/3
1 + 1/5=
1 - 1/3 =
