What is the best way to join 'or' and 'and' together? 'or/and' or 'and/or'?
Become a logician and say or. :^)
I also vote for and/or but dislike it stylistically. So here are some alternatives.
Maybe the last one is a stretch for non-technically-minded audiences. Maybe.
I've only seen it as "and/or" and "and or" without the slash. I have not seen it in the form "or/and" before!
EDIT: I would actually try and avoid it if possible by rewriting!