The fraction 77/100 is equal to 77.00% when expressed as a percentage. This means that if you have 77 out of 100 parts of something, you have 77 percent of the whole. It's a common way to represent parts of a whole, especially when dealing with statistics, grades, or probabilities.
You might see 77/100 or 77.00% used in various real-world situations. For example, if 77 out of 100 students passed a test, you could say the pass rate was 77%. Or if a weather forecast predicts a 77% chance of rain, it means there's a pretty good likelihood of precipitation. This fraction and percentage are just above three-quarters of the whole, so they represent a significant majority in most contexts.