A fraction is a number that shows how many equal parts there are. When we write fractions, we show one number with a line above (or a slash next to) another number.[1][2] For example, , 1⁄4 and 1/4.are different ways of writing the same fraction (in this case a quarter). The top number tells us how many parts there are, and the bottom number tells us the total number of parts.[3]