The fraction 9/42 expressed as a percentage is 21.43%. This tells you how much of a whole 9 parts out of 42 represent when you look at it on a 100‑point scale.
If you simplify 9/42, you get 3/14, which is still the same size as the original fraction. Whether you write it as 3/14 or 9/42, the percentage stays the same.
In everyday situations, a value of about 21 % might describe a small portion of a class, a budget item, or a sports statistic. It’s useful when you need to compare that part to other percentages quickly.
Remember, whenever you see 9/42, you can think of it as roughly one‑fifth of the whole, which is just a little over 20 %.
