@ned @jerrymacgp
Also FWIW: there’s a remarkable lack of guidance on this question of order of operations for slashed (solidus) fraction from official math typesetting sources. AMS and IEEE Style guides are silent; Mathematical Writing (Knuth et al) and Mathematics Into Type (Ellen Swanson) say nothing AFAICT.
This guide, however, does explicitly state the rule as Ned (and I would expect most mathematicians) understand it:
https://cdn.journals.aps.org/files/styleguide-pr.pdf
Item IV.E.1(e):