66/73 as a percentage is 90.41%. This number tells you that the fraction is just a little under one whole, or 100 %.
The fraction 66/73 is a proper fraction, meaning the numerator (66) is smaller than the denominator (73). It represents a large portion of the whole, which is why the percentage is so close to 90 %.
Seeing it as 90.41% can help you compare it quickly with other values, like test scores or discount rates, without having to think about the original numbers.
In everyday language, you might say “about ninety percent” when you want a rough idea, but the exact figure 90.41% gives you a precise sense of how much of the whole is covered.