9/51 as a percentage is 17.65%. This fraction is a little less than one fifth, so the percentage shows it’s a small portion of a whole. When you see 17.65%, you know that 9 out of 51 parts are being represented.
The fraction 9/51 can be simplified to 3/17, but the percentage stays the same. Using the rounded value makes it easier to compare with other percentages, like 20% or 10%, which are more familiar in everyday situations.
In practical terms, if you had 51 items and you took 9 of them, you would have taken about 17.65% of the total. This helps when you need to describe portions in a clear, numeric way.