67/77 as a percentage is 87.01%. This number tells you how close the fraction is to a whole. It’s a handy way to compare the fraction with other percentages you might see.
The fraction 67/77 is already in its simplest form, so you don’t need to change it. It represents a part of a whole where the whole is divided into 77 equal pieces and you have 67 of those pieces.
When you see 87.01% on a chart or in a report, you can think of it as “almost ninety percent.” It’s useful for quick mental estimates and for communicating how large a portion something is in everyday language.