There are an infinite number of them.
Here are a few:
1/2
1/4
1/5
1/6
1/7
2/3
3/4
2/5
3/5
4/5
an equivalent fraction in two sixes
15/47
one third
one third
2/6
10/30
one third.
33 and one third percent= two sixth.
one-third
2/3
3/9
0.33333333334 is equivalent to 1/3 (one-third)