Answer:
1/3 as a decimal is 0.333
2/3 as a decimal is 0.6666
The numerator would need to be less than 17, so find the numbers when divided by 17 are greater than 0.333 and less than 0.6666.
5/17 = 0.294
6/17 = 0.353
The lowest whole number would be 6.
11/17 = 0.647
12/17 = 0.705
The highest whole number would be 11.
So you would have 6/17, 7/17, 8/17, 9/17, 10/17, 11/17 for a total of 6 numbers.