1. plural of fifteenth; the ordinal numbers corresponding to the number fifteen in a sequence
2. plural of fifteenth; fractions equal to one part of fifteen equal parts

Examples

• The fifteenths in the sequence were marked with special symbols.
• She finished in the fifteenths during both races this season.
• The recipe called for three fifteenths of a cup of sugar.
• Students struggled with adding fifteenths to other fractions.
• The fifteenths place finishers received consolation prizes.
• Converting fifteenths to decimals requires division by fifteen.