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?
Joe spent 1/9 * $450 = $
<gadget id="calculator">1/9*450</gadget>
<output>50</output>
50 on chocolate.
Joe spent 2/5 * $450 = $
<gadget id="calculator">2/5*450</gadget>
<output>180</output>
180 on fruits.
Joe has $450 - $50 - $180 = $
<gadget id="calculator">450-50-180</gadget>
<output>220</output>
220 left.

<result>220</result>