42/77 as a percentage is 54.55%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 42/77 can also be written in its simplest form as 6/11. Both versions show the same size relationship: a little more than half of a whole. When you think about it, 54.55% is just a different way of saying "about five and a half parts out of ten."
Knowing the percentage makes it easy to compare 42/77 with other values. For example, if you have a test score of 54.55%, you are just over the halfway mark, which is useful information for setting goals or measuring progress.
