Start by taking the number in Fahrenheit and subtracting 32. Then divide the number by 9, and then multiply it by 5. This is how you convert Fahrenheit to Celsius or use the equation C = (F - 32) × 5/9
In this case, the answer is about -20 degrees Celsius.
F = (9/5)*C + 32, so (9/5)*(-1) + 32 = 30.2° F
I suggest you convert each of the Fahrenheit temperatures to Celsius (or the other way round, each of the Celsius temperatures to Fahrenheit), and then compare.
Convert Fahrenheit to Celsius: Celsius = (5/9) * (Fahrenheit - 32)Convert Celsius to Fahrenheit: Fahrenheit = (9/5) * Celsius + 32Convert Celsius to kelvin: Kelvin = Celsius + 273.15Convert kelvin to Celsius: Celsius = kelvin - 273.15
Celsius
F = Fahrenheit & C = Celsius ..... a think it is :S.