1. The problem is to evaluate the expression $4\div 3$. 2. Division means splitting a number into equal parts. Here, we want to split 4 into 3 equal parts. 3. The division can be written as a fraction: $$\frac{4}{3}$$. 4. This fraction is an improper fraction because the numerator (4) is greater than the denominator (3). 5. To express it as a mixed number, divide 4 by 3: $$4 \div 3 = 1 \text{ remainder } 1$$. 6. So, $$\frac{4}{3} = 1 \frac{1}{3}$$. 7. In decimal form, $$\frac{4}{3} = 1.333\ldots$$ (repeating). Final answer: $$\frac{4}{3} \text{ or } 1 \frac{1}{3} \text{ or } 1.333\ldots$$