36/79 as a percentage is 45.57%. This value tells you how much of a whole the fraction represents when you look at it in terms of 100 parts.
The fraction 36/79 is a proper fraction, meaning the numerator is smaller than the denominator. It can't be simplified further because 36 and 79 share no common factors other than 1.
Seeing the percentage helps you compare the fraction to everyday numbers, like scores or discounts. So whenever you need a quick sense of size, you can think of 36/79 as roughly 45.6 percent of a whole.