66/96 is 68.75%. This percentage tells you how much of a whole the fraction represents when you look at it as parts per hundred.
The fraction 66/96 can be reduced to 11/16, which is a simpler way to see the same value. Both forms describe the same portion of a whole, just expressed differently.
Seeing the number as a percentage makes it easy to compare with other percentages, like grades or interest rates. It shows that the fraction is just under three‑quarters of a whole.
Remember, whenever you need to communicate a part of a whole in everyday terms, using the percentage 68.75% is clear and straightforward.