1. The problem is to understand and work with the numbers: $\frac{1}{2}$, 2, 3, and 4. 2. These numbers include a fraction ($\frac{1}{2}$) and whole numbers (2, 3, 4). 3. Fractions represent parts of a whole, where $\frac{1}{2}$ means one part out of two equal parts. 4. Whole numbers are integers without fractions or decimals. 5. You can perform operations like addition, subtraction, multiplication, and division with these numbers. 6. For example, adding $\frac{1}{2}$ and 2 involves converting 2 to a fraction with denominator 2: $2 = \frac{4}{2}$. 7. Then, $\frac{1}{2} + \frac{4}{2} = \frac{5}{2}$. 8. This can be converted back to a mixed number: $\frac{5}{2} = 2 \frac{1}{2}$. 9. Similarly, you can multiply $\frac{1}{2}$ by 3: $\frac{1}{2} \times 3 = \frac{3}{2} = 1 \frac{1}{2}$. 10. Understanding how to convert between fractions and whole numbers is key to working with these values.