Nothing. And that’s why people don’t write equations like that: You either see
46 + ---2
or
6 + 4
-------
2
If you wrote 6 + 4 / 2 in a paper you’d get reviewers complaining that it’s ambiguous, if you want it to be on one line write (6+4) / 2 or 6 + (4/2) or 6 + ⁴⁄₂ or even ½(6 + 4) Working mathematicians never came up with PEMDAS, which disambiguates it without parenthesis, US teachers did. Noone else does it that way because it does not, in the slightest, aid readability.
Nothing. And that’s why people don’t write equations like that: You either see
4 6 + --- 2
or
6 + 4 ------- 2
If you wrote
6 + 4 / 2
in a paper you’d get reviewers complaining that it’s ambiguous, if you want it to be on one line write(6+4) / 2
or6 + (4/2)
or6 + ⁴⁄₂
or even½(6 + 4)
Working mathematicians never came up with PEMDAS, which disambiguates it without parenthesis, US teachers did. Noone else does it that way because it does not, in the slightest, aid readability.Says someone who clearly hasn’t looked in any Maths textbooks
Only if their Maths was very poor. #MathsIsNeverAmbiguous
Yes they did.
It was never ambiguous to begin with.
Says someone who has never looked in a non-U.S. Maths textbooks - BIDMAS, BODMAS, BEDMAS, all textbooks have one variation or another.