When you turn 40 / 96 into a percent, you get 41.67%. This rounded value shows how much of a whole the fraction represents in everyday terms.
The fraction 40 / 96 can be reduced to 5 / 12, which is a simpler way to see the same size. Whether you write it as 5 / 12 or as a percent, the amount stays the same.
Knowing the percentage helps when you compare parts of a whole, such as a score on a test or a share of a budget. A value of 41.67% means a little less than half of the total.