66/93 as a percentage is 70.97%. This fraction is a little more than two‑thirds, and when expressed as a percent it rounds to 70.97 %.
The fraction 66/93 can be reduced by dividing both numbers by 3, giving 22/31. Even though it’s not a common fraction, its decimal value is about 0.7097, which matches the percentage above.
In everyday use, you might see this percentage when comparing parts of a whole, like scoring 66 out of 93 points on a test. It tells you that you achieved roughly 71 % of the possible score.