27/42 as a percentage is 64.29%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
If you simplify 27/42, you get the reduced fraction 9/14. Both the fraction and the percentage show the same relationship: the part is a little more than half of the whole.
Knowing the percentage can be handy in everyday situations, like figuring out what portion of a class passed a test or how much of a recipe you need to use. It’s a quick way to understand the size of the part compared to the whole.
