Hi there!
First let's multiply the fraction 1/4 x 3/3. This will give us all of the same denominators. Now, we have 6 3/12, 5 5/12, and 6 1/12. Since the lowest number is 5, we know that 5 5/12 is the smallest value. Then, we see that we have two 6's left. Since 3/12 is bigger than 1/12, we know that 6 1/12 comes after 5 5/12. Lastly, 6 3/12 is the greatest.
ORDER:
5 - 5/12, 6 - 1/12, 6 - 3/12
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!