What is 80/100 as a percentage? 80.00%. This is the simplest way to show the fraction as a percent, rounded to two decimal places.
The fraction 80/100 can also be read as “80 out of 100.” It tells you how many parts of a whole are taken when the whole is split into 100 equal pieces. Because the denominator is already 100, the numerator directly becomes the percent value.
Using 80.00% is handy in everyday situations, like grading or budgeting. When you see 80 out of 100 points on a test, you know you earned eighty percent of the possible score. The same idea works for any similar fraction where the bottom number is 100.
