30/36 as a percentage is 83.33%. This is the rounded value you get when you look at the fraction in a whole‑number form. It’s a handy way to see how much of a whole 30 parts out of 36 represent.
The fraction 30/36 can be reduced to 5/6, which is a common simple fraction. Knowing that 5/6 is the same as 83.33% helps when you need to compare parts of a whole in different formats, like charts or reports.
In everyday situations, you might see 83.33% used to describe a test score, a portion of a budget, or a percentage of a group. It tells you that almost all of the total is covered, leaving just a small part left over.