What is the ratio of atoms in the molecule aluminum carbonate?

The molecular formula for aluminum carbonate is Al2(CO3)3.

In this molecule, there are 2 atoms of aluminum (Al), 3 atoms of carbon (C), and 9 atoms of oxygen (O).

The ratio of atoms in aluminum carbonate is:

Aluminum (Al) : Carbon (C) : Oxygen (O)

2 : 3 : 9