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?

Converting Fahrenheit to Celsius uses two steps: remove the freezing-point offset and then scale the unit size. The Fahrenheit scale shifts by 32 degrees at the freezing point of water, while the size of one Celsius degree is 1.8 Fahrenheit degrees. So the right formula is Celsius equals (Fahrenheit minus 32) divided by 1.8, which is the same as (F - 32) × 5/9. For example, 68°F → (68 − 32) ÷ 1.8 = 36 ÷ 1.8 = 20°C. Subtracting 32 alone doesn’t convert the units, and multiplying by 1.8 would move the value in the wrong direction (it converts Celsius to Fahrenheit).

Converting Fahrenheit to Celsius uses two steps: remove the freezing-point offset and then scale the unit size. The Fahrenheit scale shifts by 32 degrees at the freezing point of water, while the size of one Celsius degree is 1.8 Fahrenheit degrees. So the right formula is Celsius equals (Fahrenheit minus 32) divided by 1.8, which is the same as (F - 32) × 5/9. For example, 68°F → (68 − 32) ÷ 1.8 = 36 ÷ 1.8 = 20°C. Subtracting 32 alone doesn’t convert the units, and multiplying by 1.8 would move the value in the wrong direction (it converts Celsius to Fahrenheit).

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