1. The problem asks to find 50% of 70. 2. To find a percentage of a number, use the formula: $$\text{Percentage of a number} = \frac{\text{percent}}{100} \times \text{number}$$ 3. Here, the percent is 50 and the number is 70, so substitute these values: $$50\% \text{ of } 70 = \frac{50}{100} \times 70$$ 4. Simplify the fraction $\frac{50}{100}$ by canceling common factors: $$\frac{\cancel{50}}{\cancel{100}} = \frac{1}{2}$$ 5. Now multiply: $$\frac{1}{2} \times 70 = \frac{70}{2} = 35$$ 6. So, 50% of 70 is 35. This means half of 70 is 35, which makes sense because 50% means half.