1. We are given the equation $$\frac{8}{5} = \frac{?}{20}$$ and need to find the missing numerator. 2. To solve for the missing number, we use the property of equivalent fractions that says cross products are equal: $$8 \times 20 = 5 \times ?$$. 3. Calculate the left side: $$8 \times 20 = 160$$. 4. Set up the equation: $$160 = 5 \times ?$$. 5. Divide both sides by 5 to isolate $$?$$: $$? = \frac{160}{5}$$. 6. Simplify: $$? = 32$$. So, the missing number in the fraction is 32.