So we have 2/3 s + 5/6 s
In order to simplify this, we need to get a common denominator and we can do this by multiplying 2/3 by 2, which yields 4/6 s.
Now, we add the two together:
4/6(s) + 5/6(s) = 9/6 (s) = 21
Finally, we can divide 21 by 9/6 which yields 126/9. This simplifies to 14.
S = 14
