Math Skills Convert Between Temperature Scales Practice . C = ('F - 32) 1. Convert 86 F to Celsius. 1.8 For example, to convert 176 F to Celsius: 1. Always perform the operation in parentheses first. 176 - 32 = 144 2. Convert 37.C to Fahrenheit. 2. Divide the answer from Step 1 by 1.8. 144 - 80 .C 1.8 = To convert Celsius to Fahrenheit, follow the same steps using the following equation: OF = (C X 1.8) + 32 Che