31/87 expressed as a percentage is 35.63%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 31/87 can be thought of as 31 parts out of a total of 87 equal parts. When you compare that to a whole (100 parts), it comes out to just over a third of the whole.
Knowing the percentage makes it easier to compare the fraction with other values, especially when dealing with data, charts, or everyday situations where percentages are more common than fractions.
