37/87 as a percentage is 42.53%. This number tells you that the fraction represents a little less than half of a whole when expressed in percent form.
The fraction 37/87 is already in its simplest form because 37 is a prime number and does not share any common factors with 87. Keeping it reduced makes it easier to compare with other fractions or percentages.
In everyday use, you might see 42.53% on a chart, a test score, or a discount label. Knowing how to read a fraction as a percentage helps you quickly understand parts of a whole in a familiar way.