how do I convert 68 degrees fahrenheit into celsius?

Didn't you understand bobpursley's answer?

http://www.jiskha.com/display.cgi?id=1349288153

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

C = (F - 32) * 5/9

where C represents the temperature in Celsius and F represents the temperature in Fahrenheit.

So, to convert 68 degrees Fahrenheit to Celsius, you need to substitute the value of F into the formula:

C = (68 - 32) * 5/9

Now, let's solve the equation step by step:

Step 1: Simplify the equation within parentheses:
C = 36 * 5/9

Step 2: Multiply 36 by 5:
C = 180/9

Step 3: Simplify the fraction:
C = 20

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