# Convert to Celsius 20f 20f
This is the conversion formula for Fahrenheit to Celsius, where TF is temperature in Fahrenheit and TC is temperature in Celsius.
TC=59⋅(TF-32)
Substitute the Fahrenheit temperature into the formula.
TF=59⋅(20-32)
Subtract 32 from 20.
Tc=59⋅-12
Cancel the common factor of 3.
Factor 3 out of 9.
Tc=53(3)⋅-12
Factor 3 out of -12.
Tc=53⋅3⋅(3⋅-4)
Cancel the common factor.
Tc=53⋅3⋅(3⋅-4)
Rewrite the expression.
Tc=53⋅-4
Tc=53⋅-4
Combine 53 and -4.
Tc=5⋅-43
Simplify the expression.
Multiply 5 by -4.
Tc=-203
Move the negative in front of the fraction.
Tc=-203
Tc=-203
Convert the fraction to a decimal by dividing the numerator by the denominator.
Tc=-6.6‾
Convert to Celsius 20f

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