First thing we do is put the numbers on the right side of the equal sign. If we have a number on the left side of the equal sign, we bring it to the right side and change the signTherefore 3/8 + p = 1/2 p= 1/2  3/8Now we need a common denominator. Once we get a common denominator, we subtract the numerators, and bring down the denominator.So p = 1/2  3/8 p = 1/2(4/4)  3/8(1/1) p = 4/8  3/8 p = 1/8 or 0.125
