50/77 as a percentage is 64.94%. This number tells you how much of a whole 50 parts out of 77 represent when you look at it on a scale of 100.
The fraction 50/77 cannot be reduced any further because 50 and 77 share no common factors other than 1. It is a little more than half, since 1/2 equals 0.5 (or 50%) and 50/77 is about 0.6494 in decimal form.
Knowing the percentage makes it easy to compare this fraction to everyday situations, like seeing that 64.94% of a class scored above a certain mark, or that 64.94% of a recipe’s ingredients have been used. It’s a handy way to talk about the same amount in a format most people understand.