272/272 = 100%
A fraction like 272/272 shows up when all 272 items in a group are complete, counted, or accounted for. For example, a teacher might record that every student turned in an assignment, or a factory might report that all items in a shipment passed inspection: 100%.
You can picture it as a whole pizza with every slice still included, or a full battery shown at its maximum level. Since the top and bottom numbers are the same, you can quickly recognize that the fraction represents one complete group.
A common point of confusion is thinking that the number 272 makes the fraction larger than 100%. The size of the numerator does not matter by itself; because it matches the denominator, the fraction represents the entire amount, not more than the entire amount.