Of course this isn’t math. This is convention. We have conventions on how to write these things just like we have conventions on how to spell stuff. But still, there are different conventions. Some people spell it as gray and others as grey. We still understand what’s going on. For me, I would write this more explicitly so that there is no confusion. Like this:
8/(2*(2+2)), if that’s what you are trying to do. That way no one will get it wrong.