lua-users home
lua-l archive

[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index] [Thread Index]


I'm not sure if two fraction bars with the same length/weight are even allowed.
I did not find this neither in my daughters school math books, the current home schooling platform nor in my (old) algebra book from university.

Wikipedia (https://en.wikipedia.org/wiki/Fraction#Complex_and_compound_fractions):
"So 5/10/20/40 is not a valid mathematical _expression_, because of multiple possible interpretation."


On Wed, Jan 13, 2021 at 6:29 AM Egor Skriptunoff <egor.skriptunoff@gmail.com> wrote:
On Tue, Jan 12, 2021 at 2:25 AM bel wrote:
> I understand your concern about "a/b*c".
> But why do you suggest writing "a/b/c" as "(a/b)/c" ?

But look at this:
               a
              ---
   a           b
-------  =  -------
   b           c
  ---
   c

... or not?

Indeed, fractions might have different priorities:
the longer the line the lower priority of the division operation.
If all the "lines" have the same "length"
for example, as in "a/b/c/d",
usual school math rules are applied:
the calculation goes from left to right.