If Joe spent 1/9 of his pocket money of $450 on chocolates and 2/5 on fruits, how much money does he have left? Think carefully first, then make a decision:
Joe spent 1 / 9 * $450 = $50 on chocolate. Joe spent 2 / 5 * $450 = $180 on fruits. Joe has $450 - $50 - $180 = $220 left. So, the answer is 220.