35/40 as a percentage is 87.50%. This simple fraction reduces to a tidy decimal that is easy to read and compare in everyday situations.
The fraction 35/40 can also be simplified to 7/8, which shows it is a large portion of a whole. When you think of 8 equal parts, you have 7 of them, which is why the percentage is so high.
Seeing 87.50% helps when you need to compare scores, discounts, or any situation where a part of a whole is expressed in percent. It tells you that the fraction is close to full, but not quite there.
In practical terms, if you had 40 items and you owned 35 of them, you would own 87.50% of the total. This quick reference makes it easy to communicate the size of the share.