66/90 as a percentage is 73.33%. This value tells you that the fraction is a little more than seven‑tenths of a whole. It’s a handy way to see the size of the fraction at a glance.
The fraction 66/90 can be reduced to 11/15, which is still close to three‑quarters. Seeing it as 73.33% makes it easier to compare with other percentages, like a 70% pass mark or a 75% discount.
In everyday situations, you might use 73.33% to estimate how much of a project is finished, or to understand a test score that isn’t a round number. It gives a clear picture without needing to work with the original fraction.
