30/84 as a percentage is 35.71%. This is the rounded value you would see on most calculators or reports, and it tells you how much of a whole the fraction represents.
The fraction 30/84 can be simplified to 5/14, which is a bit more than one third. Seeing it as a percentage makes it easier to compare with other numbers, especially when dealing with data that is already expressed in percent form.
In everyday situations, you might use this percentage to understand a score, a discount, or a portion of a group. For example, if 30 out of 84 students passed a test, you could say that 35.71% of the class succeeded. This quick view helps you grasp the size of the part relative to the whole.
