1/40 = 2.5%
The fraction 1/40 represents a small amount: 2.5%. You might see a value like this when a store offers a 2.5% discount, a savings account earns a small amount of interest, or about 1 out of 40 items in a batch has a certain feature.
To picture it quickly, imagine 40 equal squares with just 1 square shaded. You can also estimate it as a little more than 2 out of every 100, so it is noticeable but still quite small.
A common mistake is to think 1/40 is the same as 1/4 because both fractions have a 1 on top. The denominator matters: 40 parts make each part much smaller than 4 parts, so 1/40 is far less than 25%.
