31/53 is equal to 58.49%. This fraction shows up often when you compare two numbers that aren't whole multiples of each other, and turning it into a percentage makes it easier to understand at a glance.
When you see 58.49%, you know that for every 100 parts, about 58 of them are represented by the original fraction. This kind of conversion is handy in everyday situations like calculating grades, discounts, or sports statistics.
The percentage is rounded to two decimal places, so the true value is a tiny bit higher or lower, but 58.49% is accurate enough for most practical uses.