20/34 as a percentage is 58.82%. This number tells you how much of a whole the fraction represents when it’s expressed in hundredths.
The fraction 20/34 can be reduced to 10/17, which is still a bit hard to picture. Thinking of it as a percent makes it easier to compare with other values you might see on a test or in everyday life.
When you see 58.82% on a chart or in a report, you now know it comes from the simple fraction 20/34. It’s a quick way to see the size of the part relative to the whole.