45/72 as a percentage is 62.50%. This value tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 45/72 can be reduced by dividing both the numerator and the denominator by their greatest common divisor, which is 9. That gives the simpler form 5/8. Both forms describe the same part of a whole.
When you think of 62.50%, picture it as a little more than half of something. If you had 100 items, about 63 of them would match the amount shown by 45/72.
Using percentages like this makes it easy to compare different fractions or to see how a part fits into a whole, especially in everyday situations such as grades, discounts, or statistics.
