The fraction 42/81 is equal to 51.85% when converted to a percentage. This means that if you had 81 items and took 42 of them, you'd have about 51.85% of the total. It's a bit more than half, so you can think of it as having just over 50% of something.
In everyday life, you might come across this fraction or percentage in various situations. For example, if you answered 42 questions correctly out of 81 on a test, you'd have scored 51.85%. Or if you ate 42 slices of pizza out of a total of 81 slices at a party, you'd have consumed 51.85% of the available pizza. It's a useful number to know when dealing with parts of a whole or comparing quantities.
