18/80 as a percentage is 22.50%. This value tells you how much of a whole the fraction represents when you look at it in terms of parts per hundred.
The fraction 18/80 can also be simplified to 9/40, but the percentage stays the same. Seeing it as a percent makes it easier to compare with other numbers that are already in percent form.
When you work with percentages, you can quickly see that 22.50% is less than a quarter of the whole. This helps in everyday situations like budgeting, grading, or measuring parts of a project.
