Simply calculate <em>450 / 3</em>. This is the same as multiplying it by 1/3. When you multiply a number by a fraction, it is the same as putting the number in the numerator of that fraction and dividing. So when we calculate:
450 / 3 = 150
OR
450 * (1/3) = 150
This is the amount OFF of the TV. it is easier to do this with the fraction since 1/3 does not convert to a clean decimal. Then simply subtract.