-3/4 + p = 1/2 move all the numbers to one side and change the sign + or -, like this:
p=1/2 +3/4 Now you have to find the smallest common denominator, which is 4 in this case, so
p=2/4 +3/4, Now we just add the two top numbers, like this:
p=5/4=1 1/4 which is your answer.
