20/27 as a percentage is 74.07%. This fraction is a little more than two‑thirds, and when you look at it as a percent it shows up as just under three‑quarters of a whole.
The fraction 20/27 can be useful when comparing parts of a set, like 20 out of 27 students who passed a test. Thinking of it as 74.07% makes it easier to see how large the portion is compared to a full group of 100.
In everyday situations, you might round the percent to 74% for quick estimates, but the more exact figure 74.07% gives a clearer picture when precision matters.