What is 6/8 - 7/8?

Here's how to subtract 7/8 from 6/8:

Step 1

Since our denominators match, we can subtract the numerators.

6 − 7 = -1

So the answer is:

Step 2

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

To find out, we try dividing it by 2...

No good. 2 is larger than -1. So we're done reducing.