9/66 as a percentage is 13.64%. This is the rounded value you get when you turn the fraction into a percent.
The fraction 9/66 can be reduced to 3/22, which still represents the same part of a whole. It shows that a little more than one‑tenth of something is covered.
In everyday terms, 13.64% might be the portion of a class that chose a certain answer on a poll, or the slice of a pizza that one person gets when the pizza is cut into 66 equal pieces and they take nine of them.
