Which formula is used to convert Fahrenheit to Celsius?

The correct formula for converting Fahrenheit to Celsius is C = 5/9(F - 32), which is typically expressed as C = (F - 32) × 5/9. This formula derives from the relationship between the two temperature scales.

To convert Fahrenheit to Celsius, one must first subtract 32 from the Fahrenheit temperature to account for the offset in the zero points of the two scales, and then multiply the result by 5/9 to adjust for the difference in size of the degree intervals.

The options provided contain alternative formulations, but the fundamental principle is grounded in this subtraction and multiplication process. The temperature scales are structured differently, which necessitates this conversion method to accurately reflect the same temperature in both systems.