40/46 as a percentage is 86.96%. This is the rounded value when you express the fraction in terms of a whole number out of 100.
The fraction 40/46 can be reduced by dividing both the numerator and the denominator by 2, giving the simpler form 20/23. Even in its reduced form, it still represents the same proportion of a whole, just with smaller numbers.
In everyday situations, you might see this percentage used to show how close something is to being complete—like scoring 86.96% on a test. Remember that the figure is rounded to two decimal places, so the exact value is a little more precise than the number shown.
