I wrote a (very long) blog post about those viral math problems and am looking for feedback, especially from people who are not convinced that the problem is ambiguous.
It's about a 30min read so thank you in advance if you really take the time to read it, but I think it's worth it if you joined such discussions in the past, but I'm probably biased because I wrote it :)
Division doesn't mean fraction. Division is 2 terms, a fraction is 1 term. Terms are separated by operators and joined by grouping symbols. If you change the division to a fraction you change the number of terms and change the answer (and you also would've just done division before brackets, which violates the order of operations rules).