phrases - Does "One in ten" require hyphens

In the sentence "one in ten people hate..." which is the correct way to refer to 1/10:

"One in ten" or "One-in-ten"

I'm not too sure if the hyphens are entirely necessary here. I have however seen news articles that use hyphens with this phrase and some that don't, which leaves me unsure whether the hyphens are needed or not.

Answer

"One in ten people hate ..." is correct. But if you use the phrase as an adjective ("A one-in-ten chance") hyphens are a good idea.