55/77 as a percentage is 71.43%. This value shows how much of a whole 55 parts represent when the whole is divided into 77 equal parts.
The fraction 55/77 can also be reduced to 5/7, which is a simpler way to see the same proportion. Whether you write it as 5/7 or 55/77, the percentage stays the same.
In everyday use, you might round the percentage to 71% for quick estimates, but the more precise figure is 71.43%. This makes it easy to compare the fraction to other percentages you encounter.