The fraction 24/57 is equal to 42.11%. This value is the rounded percentage you get when you change the fraction into a percent form.
When you look at 24 out of 57 parts, it’s a little less than half. That’s why the percentage is just over 40 %, but not close to 50 %.
If you need to compare it with other numbers, you can use the 42.11 % figure directly. It works well for quick estimates and simple calculations.
In everyday use, saying “about 42 %” is usually clear enough, but the exact rounded result is 42.11%.