54/79 as a percentage is 68.35%. This fraction is a little more than two‑thirds, and when you write it as a percent it rounds to 68.35%.
The fraction 54/79 cannot be simplified further, so it stays as it is. In everyday use, you can think of it as about 68 percent of a whole, which is useful for quick estimates.
When you need to compare this value to other percentages, just remember the rounded figure 68.35%. It gives a clear picture of the size of the fraction without having to work with the original numbers.