20/38 as a percentage is 52.63%. This is the rounded value you get when you compare the fraction to a whole.
The fraction 20/38 can be simplified to 10/19, but the percentage stays the same. Seeing it as a percent makes it easier to understand how large the part is compared to the whole.
In everyday situations, a 52.63% share might represent a little more than half of something—like getting 52.63 out of every 100 points on a test.
Remember, whenever you see a fraction like 20/38, you can think of it as just over half when you convert it to a percentage.