1. The problem asks us to list the numbers $\frac{1}{4}$, $\frac{4}{10}$, $\frac{41}{100}$, $0.04$, and $0.404$ from smallest to largest and find the middle number. 2. Convert all numbers to decimals for easy comparison: - $\frac{1}{4} = 0.25$ - $\frac{4}{10} = 0.4$ - $\frac{41}{100} = 0.41$ - $0.04$ (already decimal) - $0.404$ (already decimal) 3. List the decimals: $0.25, 0.4, 0.41, 0.04, 0.404$ 4. Sort them from smallest to largest: $0.04, 0.25, 0.4, 0.404, 0.41$ 5. The middle number (third in the sorted list) is $0.4$. Final answer: $0.4$