1/40 as a percentage is 2.50%. This fraction represents one part out of forty equal parts of a whole. It's a small fraction that's commonly used in various contexts, from cooking measurements to financial calculations.
When you see 1/40 or 2.50%, it means you're dealing with a relatively small portion of something. For example, if you have a 40-piece puzzle and complete just one piece, you've finished 1/40 or 2.50% of the puzzle. This fraction and percentage are useful for expressing small quantities or proportions in everyday situations.