1. Problem statement: Do a fraction example with a pizza drawing. 2. A simple fraction example is $\frac{1}{4}$, which means 1 out of 4 equal parts. 3. The rule for fractions is: $\frac{a}{b}$ means $a$ parts chosen from $b$ equal parts total. 4. Here is a pizza split into 4 equal slices, with 1 slice shown as the fraction example. 5. Final answer: $\frac{1}{4}$.