how do I convert 68 degrees fahrenheit to celsius?

C=5/9 (F-32)

To convert Fahrenheit to Celsius, you can use the formula:

Celsius = (Fahrenheit - 32) * 5/9

In this case, you want to convert 68 degrees Fahrenheit to Celsius, so you will substitute 68 for Fahrenheit in the formula:

Celsius = (68 - 32) * 5/9

To simplify:
Celsius = 36 * 5/9

Now, perform the multiplication:
Celsius = 180 / 9

Finally, perform the division:
Celsius = 20

So, 68 degrees Fahrenheit is equal to 20 degrees Celsius.