Pie Graph Fraction Visualizer

Generate a pie graph representation of any fraction by entering the numerator and denominator of the fraction and the radius of the pie graph. The radius is not part of the fraction itself; making the radius smaller or larger just makes the pie graph smaller or larger. The fraction will be represented by the dark red portion of the pie graph, while the rest of the graph will be a light blue.

The values entered must be positive integers where the for the denominator `d`, `d <= 100` to reduce performance issues for rendering more pie slices. It is also required that for the denominator `d` and the numerator `n`, `n <= d` since this code does not currently support display of more than one circle, and so can't handle fractions greater than 1.