The fraction 80/81 is equal to 98.77% when converted to a percentage and rounded to two decimal places. This number is very close to 100%, with only a small difference of about 1.23%. It's a fraction that represents a large portion of a whole, just shy of being complete.
In practical terms, 80/81 or 98.77% could be used to describe situations where something is almost entirely finished or full. For example, a battery charged to 80/81 of its capacity would be nearly full. Similarly, if 80 out of 81 people in a group agreed on something, you could say there was 98.77% agreement. This fraction and its percentage equivalent are useful for expressing high levels of completion or agreement in various contexts.