21/97 as a percentage is 21.65%. This simple conversion lets you see the fraction in a form that's easy to compare with other numbers, especially when dealing with data or grades.
The fraction 21/97 is a proper fraction, meaning the numerator is smaller than the denominator. It appears in situations where you might be dividing a small part of a larger whole, such as a portion of a class or a slice of a budget.
Rounding the percentage to two decimal places—21.65%—keeps the number clear and concise while still being accurate enough for most everyday uses, like reporting results or making quick estimates.