Question 846852
Simply subtract each side by 1/8.

v = 3/4 - 1/8 

Because the denominators are different, you need to multiply 3/4 by 2/2. That will make the denominator change to 8. 

v = 3/4(2/2) - 1/8


v = 6/8 - 1/8 

v = 5/8. 

Let's plug in v's value in the original equation

5/8+1/8 = 3/4 


6/8 = 3/4 

Reduce the left side by dividing the numerator and denominator by 2/2

6/8 div (2/2) = 3/4

3/4 = 3/4. It checks out. So v = 5/8 is the correct answer.