9/42 expressed as a percentage is 21.43%. This rounded value tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 9/42 can be reduced to 3/14, but the size of the piece stays the same. Whether you write it as 9/42, 3/14, or 21.43%, the meaning doesn't change.
Knowing the percentage makes it easy to compare this part to other percentages, like a 25% discount or a 10% tip. It’s a quick way to see that 9/42 is just under a quarter of the whole.
In everyday situations, you might use 21.43% to describe a portion of a class, a share of a budget, or any other situation where a fraction of a total is needed in a more familiar format.
