What is 42/99 as a percentage? 42.42%. The fraction 42/99 is just a little under one‑half, and when you turn it into a percent you get about forty‑two point four two percent.
This number shows up when you split something into 99 equal parts and take 42 of them. It’s a handy way to compare parts of a whole when you don’t want to work with fractions.
In everyday life you might see 42.42% in a survey result, a test score, or a discount that’s close to half off. Remember the value is rounded to two decimal places, so it’s an easy, quick reference.