F = 9/5 C + 32
= 9/5 x -64 + 32
= -1151/5 + 32
= -831/5
= -83.2
→ -64oC = -83.2oF
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64 degrees Fahrenheit = 17.7 degrees Celsius.
To convert 64 degrees Fahrenheit to Celsius, you would subtract 32 from 64 to get 32, and then multiply by 5/9 to get approximately 17.78 degrees Celsius. This conversion is based on the formula: Celsius = (Fahrenheit - 32) x 5/9.
64 degrees
73.4 degress F
multiply 64 by (9/5) then add 32. answer is 147.2