use Number::FractionP;
package Number::FractionP::Foo;
use base qw/Number::FractionP/;
1;
package Number::FractionP::Bar;
use base qw/Number::FractionP/;
1;

my $n=Number::FractionP->new(1,4);
my $f=Number::FractionP::Foo->new(1,4);
my $b=Number::FractionP::Bar->new(1,4);

print $n+$f,$/;
print $n+$b,$/;
print $f+$n,$/;
print $b+$n,$/;
print $f+$b,$/;
print $b+$f,$/;

__END__
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