27/93 as a percentage is 29.03%. This value tells you how much of a whole the fraction represents when you look at it in terms of 100 parts.
The fraction 27/93 can be simplified by dividing both the top and bottom numbers by 3, which gives the equivalent fraction 9/31. Even though the numbers are smaller, the amount they represent stays the same, and it still corresponds to the same 29.03% when expressed as a percent.
Knowing the percentage makes it easy to compare the fraction to other values. For example, if you earned 27 points out of a possible 93 on a test, you scored about 29% of the total points, which can help you see where you stand and what you might need to improve.