Marius Vollmer <mvo@zagadka.de> writes:
>
> Yes, that would be an improvement.  Could you implement it?

Starting with less_p,

        * numbers.c (scm_less_p): Don't convert frac to float for compares,
        that can give wrong results through rounding.

        * tests/numbers.test (<): Add tests inum/bignum/flonum/frac with frac.

For min and max, I'd be inclined to have them call scm_less_p for
their comparison, to avoid duplicating code.