I am studying chemistry [atomic structure] but i encountered a term , which i can't explain it relates to mathematics

Question

anonymous · Answer

What is a simple-whole number ratio

mathmate · Answer

In H2O, the ratio of number of atoms is 2:1, that's a whole ratio.

mathmate · Answer

In C2H6, the whole number ratio is 2:6, but it is not simple, because it can be reduced to 1:3, which is your simple whole number ratio.

anonymous · Answer

I am deviating for a moment the molecular formula of sucrose is 
$$\huge C_{12}H_{22}O_7$$
$$\huge 12:22:11$$
Why is this not a simple whole number ratio

mathmate · Answer

* $\huge C_{12}H_{22}O_{11}$

anonymous · Answer

Yeah sorry i made a typing error, but why is it not

mathmate · Answer

Not sure, I don't see that it can be further simplified.
Hope it is not because it is a ratio between three numbers.

anonymous · Answer

this is a trivial question anyways , will ask my prof....

mathmate · Answer

Would you be kind enough to post your prof's answer, some time?  :)

anonymous · Answer

Yes sure :)

mathmate · Answer

Thank you!  :)

anonymous · Answer

I will tag you

mathmate · Answer

Thanks!  :)