38/57 as a percentage is 66.67%. This is the rounded value you get when you change the fraction into a percent. It’s a quick way to see how big the fraction is compared to a whole.
The fraction 38/57 can be simplified only a little, because 38 and 57 share a factor of 1. It means you have 38 parts out of a total of 57 equal parts. When you look at it as a percent, it tells you that about two‑thirds of the whole are covered.
Knowing the percent form is useful in everyday situations, like figuring out test scores, discounts, or data percentages. So whenever you see 38/57, you can think of it as roughly 66.67% of the whole.