6/28 as a percentage is 21.43%. This value tells you how much of a whole the fraction represents when the whole is taken as 100 %.
The fraction 6/28 can be reduced to 3/14, which is an easier form to work with in many problems. Both forms describe the same part of a whole, just with different numbers.
Knowing that 21.43% is the percentage helps you compare this piece to other percentages, like 25 % or 10 %. It’s a handy way to see how big or small the fraction is at a glance.