68/88 as a percentage is 77.27%. This is the rounded value you get when you compare the fraction to a whole.
The fraction 68/88 can be reduced by dividing both numbers by 4, giving 17/22. Even though it’s a simpler fraction, the percentage stays the same because the value of the number hasn’t changed.
Knowing the percentage helps you see how large the fraction is compared to 100. For example, if you scored 68 out of 88 on a test, you actually earned about 77.27% of the total points. This makes it easy to compare results with other scores that are already in percent form.