fun ĠInt . r (): ĠRational Number Ġ= Ġ< task Window > TODO ()</ task Window > Ċ fun ĠPair < Int , ĠInt >. r (): ĠRational Number Ġ= Ġ< task Window > TODO ()</ task Window > Ċ Ċ data Ġclass ĠRational Number ( val Ġnum erator : ĠInt , Ġval Ġdenominator : ĠInt )