7/42 as a percentage is 16.67%. This number tells you how much of a whole 7 parts out of 42 represent when you look at it in terms of 100.
The fraction 7/42 can be simplified to 1/6, which is a common fraction you might see in recipes or measurements. Thinking of it as a part of a whole makes it easy to compare with other numbers.
When you see 16.67% on a chart or in a report, you now know it comes from the same simple ratio of 7 out of 42. It’s a quick way to understand the size of that part without having to work with fractions.