Java tutorial
import org.apache.commons.lang.math.Fraction; public class FractionExampleV1 { public static void main(String args[]) { Fraction twoThirds = Fraction.TWO_THIRDS; Fraction fraction_whole = Fraction.getFraction(2, 2, 3); Fraction fraction = Fraction.getFraction(27, 98); Fraction fraction_double = Fraction.getFraction(4.56); Fraction fraction_string = Fraction.getFraction("2 1/3"); System.err.println(twoThirds.doubleValue()); System.err.println(fraction_string.getNumerator()); System.err.println(fraction_whole.divideBy(fraction_double)); System.err.println(fraction.divideBy(fraction)); } }