Here's how to subtract 7/8 from 5/6:
So we multiply 5 by 8, and get 40.
Then we multiply 7 by 6, and get 42.
Next we give both terms new denominators -- 6 × 8 = 48.
So now our fractions look like this:
Since our denominators match, we can subtract the numerators.
40 − 42 = -2
So the answer is:
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...
Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:
Let's try dividing by 2 again...
No good. 2 is larger than -1. So we're done reducing.There you have it! The final answer is: