Answer:

Step-by-step explanation:
So we have the expression:

To subtract, we want to have a common denominator. So, let's find a common denominator by using the LCM.
The LCM of 6 and 12 is 12.
Since the second term is already 12, let's multiply the first term by 2 to get its denominator to be 12:

Multiply:

Now, we can combine the fractions:

Subtract:

And we are done!