9/39 as a percentage is 23.08%. This tells you that the part represented by 9 out of 39 is just a little over one‑fifth of the whole.
The fraction 9/39 can be reduced to 3/13, which still represents the same size piece of a whole. Seeing it as a percentage makes it easier to compare with other numbers you might meet in everyday situations.
Percentages are handy because they show how much of 100 something is. Rounding to two decimal places gives a clear, tidy figure—23.08%—that’s quick to read and use.
