2/3-4/3 would result in a negative answer which is -2/3, this is because -4/3 is somewhat a bigger number than 2/3 meaning, the sign of the bigger number is the answer of this equation
He multiplied the four and the three first when he multiplied the equation together. However, according to the order of the operations, he was supposed to square three first. 3^2 = 9. Then multiplied 9*4 = 36.
