Nctm: Illuminations: Fraction Models

Numerator values can be set for 0-20. Denominator values restricted to 1, 2, 4, 5, 8, 10 and 20. Use this interactive tool to show a fraction. Adjust both the denominator and numerator and see a visual representation as a part of a circle, rectangle or a set. Also, you can see the equivalent decimal and percent for each fraction.