1. **Problem:** Simplify the expression $$\frac{4}{3}$$. 2. **Formula and rules:** This is a simple fraction already in simplest form. 3. **Intermediate work:** No further simplification needed. 4. **Explanation:** Since $$\frac{4}{3}$$ is already a fraction in simplest terms, the answer remains $$\frac{4}{3}$$. **Final answer:** $$\frac{4}{3}$$