c:/www/apache/doc2//pear/Math/Fraction.phpConstructor.Add another fraction to this one.Subtract another fraction from this one.Multiply another fraction with this one.Divide this fraction by another one.Normalize this fraction.Dump this fraction.representation of fractionGet string representation of this fraction.Check, if a varaible holds a Math_Fraction object.Handle the return or storage of a result from add, sub, mul or div.zaehler of the fractionnenner of the fraction