5/53 as a percentage is 9.43%. This is the rounded value you get when you express the fraction as a part of a whole.
The fraction 5/53 means you have 5 parts out of a total of 53 equal parts. It is a small fraction because the numerator (5) is much smaller than the denominator (53).
You might see a number like this when looking at odds, test scores, or survey results. For example, if 5 out of 53 people preferred a certain flavor, that preference would be about 9.43% of the group.
Remember that the percentage is rounded to two decimal places, so the exact decimal might be a tiny bit different, but 9.43% is the commonly used figure.