1. **State the problem:** We need to find the ratio of the water bill to the electricity bill based on the given amounts. 2. **Given values:** - Water bill = 1500 - Electricity bill = 2400 - Family income = 112000 (not directly needed for ratio calculation) 3. **Formula for ratio:** The ratio of two quantities $a$ and $b$ is given by $$\text{Ratio} = \frac{a}{b}$$ 4. **Calculate the ratio:** $$\text{Ratio} = \frac{1500}{2400}$$ 5. **Simplify the fraction:** Divide numerator and denominator by their greatest common divisor (GCD), which is 300: $$\frac{1500 \div 300}{2400 \div 300} = \frac{5}{8}$$ 6. **Interpretation:** The ratio of the water bill to the electricity bill is $5:8$. 7. **Note:** The family income is not required to find this ratio but could be used for further analysis if needed.