When you change the fraction 27/42 to a percent, you get 64.29%. This tells you that the fraction is a little more than six‑tenths of a whole.
The fraction 27/42 can be reduced to 9/14, which is still a bit larger than ½. Knowing the percent value makes it easy to compare this amount with other numbers, especially when dealing with money, grades, or statistics.
In everyday situations, a result of about 64.29% might represent a test score, a discount, or the portion of a project that’s been finished. It’s a handy number to have on hand when you need a quick sense of how big the part is compared to the whole.