If it doesn't work, make yourself a sub to solve the problem instead of worrying about the why :) 
use strict;
use warnings;

print myrem(4, 2.5);

sub myrem { return $_[0] - int ($_[0] / $_[1]) * $_[1]; };

[download]
You might also want to look at the overload / override modules on CPAN.

In reply to Re: Modulo of fraction? by TedPride
in thread Modulo of fraction? by crenz

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