21/31 as a percentage is 67.74%. This number tells you how much of a whole 21 parts out of 31 represent when you look at it on a scale of 100. It’s a handy way to compare this fraction to other values that are expressed as percentages.
The fraction 21/31 can be seen in everyday situations, such as a class where 21 out of 31 students passed a test. Saying that 67.74% of the class passed makes the information quick to understand for anyone.
When you need to describe a portion of something, using either the fraction 21/31 or its percentage 67.74% works well. Choose the form that fits your audience—fractions are great for precise math work, while percentages are clearer for general communication.
