30/54 as a percentage is 55.56%. This value tells you that the fraction is a little more than half of a whole.
The fraction 30/54 can be simplified to 5/9, which is a common ratio in many everyday situations, such as splitting a pizza into nine slices and taking five of them.
When you see 55.56% on a report or a chart, it means the same thing as the fraction 30/54—just expressed in a way that’s easy to compare with other percentages.
Knowing both forms helps you understand data quickly, whether it’s shown as a fraction or a percentage.