1. The problem asks to find the result of the expression $$\frac{7}{9} - \frac{3}{9}$$. 2. Since the denominators are the same, we can subtract the numerators directly: $$\frac{7}{9} - \frac{3}{9} = \frac{7 - 3}{9}$$. 3. Simplify the numerator: $$\frac{7 - 3}{9} = \frac{4}{9}$$. 4. Therefore, the correct answer is $$\frac{4}{9}$$, which corresponds to option A.