The fraction 40/82 works out to 48.78% when expressed as a percentage. This rounded value gives a quick sense of how the part compares to the whole.
Even though 40/82 can be simplified to 20/41, the percentage stays the same. Seeing it as a percent makes it easier to compare with other numbers you might encounter in everyday situations.
You might use this percentage when looking at scores, statistics, or any scenario where a part of a total is needed. Knowing that 40 out of 82 is about 48.78% helps you understand that it’s just under half of the whole.