28/48 as a percentage is 58.33%. This is the simple way to see how much of a whole the fraction represents when we look at it in terms of percent.
The fraction 28/48 can also be reduced to 7/12, which still equals the same percent. Whether you write it as 28/48 or 7/12, the value stays the same.
Knowing the percent helps you compare this part of a whole to other percentages quickly, such as 50% or 75%, without having to work with the original fraction.