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Degrees F = (Degrees C * 9/5) +32Degrees C = (Degrees F - 32) * (5/9)An easy way to derive these formulas is to recall two easy points:0° C = 32° F100° C = 212° FThese are the freezing and boiling points of water--trivially easy to remember in Celsius. With these two points we can solve as a system of simultaneous equations.Use these two formulas:C=5/9 x (Fahrenheit-32)F=(9/5 x Celsius) + 32 (Brackets not needed but inserted for comparison with the previous equation.)
To convert from Fahrenheit to Celsius:C° = (F° - 32)/9 x 5Begin by subtracting 32 from the Fahrenheit number.Divide the answer by 9.Then multiply that answer by 5.To convert from Celsius to Fahrenheit:F° = (C° x 9/5) +32Begin by multiplying the Celsius temperature by 9.Divide the answer by 5.Now add 32.F= 9/5C+32 , so C=5/9(F-32)