4/49 expressed as a percentage is 8.16%. This number tells you how big the fraction is compared to a whole, using the familiar percent format.
The fraction 4/49 is a small part of one whole, just a little over eight one‑hundredths. When you see 8.16% on a chart or a label, you know it represents the same amount as the fraction 4/49.
In everyday situations, you might use this percentage to compare parts of a group, like saying “only 8.16% of the class chose option A.” It’s a quick way to see the size of the piece without writing a fraction.