Answer and explanation;
To convert temperatures in degrees Fahrenheit to Celsius, subtract 32 and multiply by or 5/9.
For example; 50° F to Celsius.
= (50°F - 32) x 5/9
= 10°C
To convert temperatures in degrees Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.
For example: 30 °C to Fahrenheit
= (30°C x 1.8) + 32
= 86°F