Home Resource Register Login Home Resource Register Login Learning Checklist Unit FractionExamplesTest your understanding Unit Fraction A unit fraction represents one part out of the total parts. For example,1 cupcake out of 5 cupcakes. Remember: The numerator of a unit fraction is always 1. If you eat 1 slice out of a whole pizza, you always eat a unit fraction. Examples: Test Your Understanding Want to practice More! Olympiad Level Questions Still Stuck!