13/30 as a percentage is 43.33%. This number tells you how much of a whole 13 parts out of 30 represent when you look at it in terms of 100.
The fraction 13/30 means you have 13 equal pieces out of a total of 30. When you compare that to a full set of 100, it comes out to about 43.33 out of every 100 parts.
You can see this percentage used in everyday situations, like when a test score is 13 correct answers out of 30 questions. It would be reported as roughly 43.33% correct.
Remember, the percentage gives a quick way to understand the size of a fraction relative to a whole, making it easy to compare with other numbers.