8/40 = 20%
A value like 8/40 can show up when 8 out of 40 students choose the same lunch option, or when 8 of 40 items in a batch are defective. In either case, that share is 20% of the whole group.
To picture it quickly, imagine dividing a group of 40 into five equal groups of 8. One of those groups is 8/40, so it’s about one person or item out of every five.
A common mistake is to think 8/40 means 8%, because the fraction’s top number is 8. The percentage describes the share of the whole, not just the number on top.
