28/43 as a percentage is 65.12%. This is the rounded value you get when you express the fraction in terms of a whole number of hundred parts.
The fraction 28/43 is a proper fraction, meaning the numerator is smaller than the denominator. It cannot be simplified further because 28 and 43 share no common factors other than 1. In everyday situations, you might see a similar ratio when comparing 28 successes out of 43 attempts.
Knowing the percentage makes it easy to compare this result with other data that’s already in percent form. For example, if a test score is 65.12%, you can instantly recognize that it’s roughly the same performance as getting 28 correct answers out of 43 questions.