26/40 = 65%
The fraction 26/40, or 65%, could describe getting 26 questions right out of 40 on a quiz. It might also represent a store sale where 65% of the items have been sold or a survey in which about two-thirds of people choose the same answer.
To picture 26/40 quickly, imagine 40 objects divided into four equal groups of 10. About two and a half groups would be included, so the amount is a little less than two-thirds of the whole.
A common mistake is thinking that 65% means 65 out of 100 items in every situation. It really means the same proportion, so the actual number can change depending on the total amount.