Answer:
-11/12
Explanation:
1. FIND the LCM (Lowest common multiple)
Then you say to your self, How many 8's go into the LCM which is 8... The answer is 1, still using the first fraction (5/8) you say 1 x 5 with gives you 5 as you see above.
and so the same for 3/4.
And you get 11/8
The second part:
The it becomes:
put that in the calculator and the answer is...