Answer: \( 5/16 \) inch is approximately \( 7.9375 \) mm.
Explanation: To convert inches to millimeters, multiply the inch measurement by \( 25.4 \) (since 1 inch = 25.4 mm).
Steps:
- Calculate \( 5/16 \) in decimal form: \( 5 \div 16 = 0.3125 \).
- Multiply by \( 25.4 \): \( 0.3125 \times 25.4 \approx 7.9375 \) mm.