27/64 as a percentage is 42.19%. This number tells you how much of a whole 27 parts out of 64 represent when you look at it on a scale of 100.
The fraction 27/64 is a bit less than one half. If you picture a pizza cut into 64 equal slices, taking 27 of those slices would give you just under half of the pizza. The decimal form of the fraction is about 0.4219, which matches the percentage when multiplied by 100.
Knowing the percentage is useful for quick comparisons. For example, if a test score is 27 out of 64 points, you can say the student earned 42.19% of the possible points, making it easy to see how they performed relative to a full score.
