nostr:npub1ynqrjfzjdj33hqjgtqxvr4623mhd4n72a9ps3y0ygv9t84r2dmysxazrw9 Yes, correct. Now it would only be read that way, but way back a lot of us would have assumed the ÷ symbol was just shorthand for writing a problem using / like this:
6
--
2(1+2)

That shorthand was common in my day and printed in exercises, creating an unnecessary ambiguity. So it's not about PEDMAS or lack of understanding the order of operations. The ambiguity came from how mathematical expressions were written in print. We would change it into a fraction when writing "long-form".