20/30 as a percentage is 66.67%. This value is the rounded result to two decimal places, making it easy to read and use in everyday situations.
The fraction 20/30 can be reduced to 2/3, which is a common ratio you might see in recipes, sports stats, or simple probability problems. Because 2/3 is a repeating decimal (0.666…), rounding it to two decimal places gives the tidy 66.67%.
When you need to compare parts of a whole, expressing 20/30 as a percentage helps you see that it’s a little more than two‑thirds of the whole. This makes it quick to communicate the size of the portion without having to work with fractions.