What is the correct formula to convert Fahrenheit to Celsius?

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Multiple Choice

What is the correct formula to convert Fahrenheit to Celsius?

Explanation:
To convert Fahrenheit to Celsius, you first remove the offset of the freezing point, which is 32°F, and then adjust for the different size of each degree by multiplying by 5/9. This gives the formula C = (F − 32) × 5/9. The 32°F offset comes from the freezing point of water, and the 5/9 factor converts Fahrenheit degree steps into Celsius degree steps because one Celsius degree is 1.8 Fahrenheit degrees. For example, 68°F → (68 − 32) × 5/9 = 20°C. Using the wrong order or the wrong ratio (like multiplying by 9/5 or adding 32) would misalign the scales and give incorrect results.

To convert Fahrenheit to Celsius, you first remove the offset of the freezing point, which is 32°F, and then adjust for the different size of each degree by multiplying by 5/9. This gives the formula C = (F − 32) × 5/9. The 32°F offset comes from the freezing point of water, and the 5/9 factor converts Fahrenheit degree steps into Celsius degree steps because one Celsius degree is 1.8 Fahrenheit degrees. For example, 68°F → (68 − 32) × 5/9 = 20°C. Using the wrong order or the wrong ratio (like multiplying by 9/5 or adding 32) would misalign the scales and give incorrect results.

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