10/28 as a percentage is 35.71%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 10/28 can be simplified to 5/14, which is still the same size as the original. Whether you write it as 10/28, 5/14, or 35.71%, the value doesn’t change—it’s just a different way to show the same part of a whole.
In everyday life, you might see this kind of percentage when dealing with scores, discounts, or measurements. Knowing that 10 out of 28 items is about 35.71% helps you quickly compare it to other numbers that are already expressed as percentages.