Here's why:
* The general formula for simple sugars is (CH2O)n, where 'n' represents the number of carbon atoms.
* This means that for every carbon atom (C), there are two hydrogen atoms (H) and one oxygen atom (O).
Example: Glucose, a common simple sugar, has the formula C6H12O6. It has 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
Therefore, simple sugars have an equal number of carbon and oxygen atoms only when 'n' is 1, which is not the case for most simple sugars.