What is 36/84 as a percentage? It comes out to 42.86% (rounded to two decimal places). This is a little under half of the whole.
The fraction 36/84 can be reduced to 3/7, which shows why the percentage is below 50 %. A simple way to think of it is three parts out of seven, not quite half.
You might see this kind of number when looking at test scores, budgets, or any situation where a part of a total is measured. Knowing that 36/84 equals 42.86% lets you quickly understand how big the part is compared to the whole.