When you turn 12/66 into a percent, you get 18.18%. This tells you that the fraction is a little less than one‑fifth of a whole.
The fraction 12/66 can be simplified by dividing both numbers by 6, which gives the simpler form 2/11. Both versions represent the same amount, just written in different ways.
Seeing a percentage like 18.18% is useful when you compare parts of a whole in charts, budgets, or test scores. It gives a quick sense of how big the piece is without having to work with the original fraction.
