What is 10/15 as a percentage? 66.67%. This is the decimal form of the fraction turned into a percent, rounded to two decimal places.
The fraction 10/15 can be simplified by dividing both numbers by 5, giving the equivalent fraction 2/3. Both fractions represent the same part of a whole, just written in different ways.
Knowing that 66.67% means roughly two‑thirds of something can be useful in everyday situations, like figuring out a discount, a test score, or a portion of a recipe. It’s a quick way to understand how large a part of a whole you have.