30/99 as a percentage is 30.30%. This number tells you how much of a whole the fraction represents when you look at it on a scale of 100. It’s a quick way to see that the fraction is a little less than one‑third of a whole.
The fraction 30/99 can be reduced to 10/33, which still isn’t a simple decimal. Because it repeats, the percentage also repeats, giving us the rounded value of 30.30%. It’s a handy number to remember when you need an approximate size without doing a long division.
In everyday situations, you might see 30.30% used to describe a small discount, a portion of a class, or the chance of an event happening. Knowing the percentage helps you compare it easily with other numbers that are already expressed out of 100.