9/12 as a percentage is 75.00%. This number shows how much of a whole the fraction represents when we think in terms of hundredths.
The fraction 9/12 can be simplified to 3/4, which is the same as three parts out of four equal parts. Whether you write it as 9/12, 3/4, or 75.00%, the value stays the same.
In everyday life, this percentage might describe a classroom where three‑quarters of the seats are filled, or a pizza where you have eaten three out of four slices. It’s a quick way to see how large a portion is compared to the whole.