15/40 as a percentage is 37.50%. This number shows how much of a whole the fraction represents when you look at it in terms of 100 parts.
The fraction 15/40 can be reduced to 3/8, which is a common way to see the same value in simpler form. Whether you use 15/40, 3/8, or 37.50%, they all describe the same portion of a whole.
Understanding this percentage helps in everyday situations like grading, budgeting, or comparing parts of a group. It’s a quick way to see that the part is just over a third of the total.
