When you ask what 9/12 is as a percentage, the answer is 75.00%. This number is already rounded to two decimal places, so you can use it right away in reports, charts, or simple calculations.
The fraction 9/12 can be reduced to 3/4, which means three parts out of four equal parts. Thinking of it as three quarters helps you picture the size of the portion—it's three of four equal slices of a whole.
In everyday life, 75.00% shows up often: a quarter of a year is three months, a school grade might be 75% on a test, and many discounts are advertised as 75% off. Knowing the percentage makes it easy to compare and communicate the size of the portion quickly.