16/56 as a percentage is 28.57%. This value tells you how much of a whole the fraction represents when it is expressed out of 100.
The fraction 16/56 can be simplified to 2/7, which is a common ratio you might see in everyday situations, like dividing a pizza into 7 slices and taking 2 of them.
When you see 28.57% on a chart or in a report, you now know it comes from the simple fraction 16/56, giving a quick way to compare parts of a whole.