72/81 as a percentage is 88.89%. This fraction is already close to a whole number, so the percentage looks familiar and easy to work with.
The fraction 72/81 can be reduced by dividing both the numerator and denominator by 9, giving 8/9. Whether you write it as 8/9 or 72/81, the value stays the same, and the percentage remains 88.89%.
Knowing this percentage is handy for quick estimates, like figuring out how much of a budget is used or what portion of a class scored a certain grade. It gives a clear, relatable picture of the fraction in everyday terms.
