> 0.49420098210293.nude
(49420098210293 100000000000000)
> 0.49420098210293.Num().Rat(1e-15).nude
(463051 936969)
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Yay Perl6. Took me a while to figure out the magic incantation, because the Perl6 documentation is nigh incomprehensible. Also, Rat() ignores the epsilon parameter if it's called on a rational. Sometimes, you'd like to find a fraction that's an approximation of another fraction without mashing it down to a float first.