pieces of paper can make 9 flowers, and 6 pieces of paper can make as many flowers.
3张纸可以做9朵鲜花，6张纸可以做多少朵鲜花．
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">3 * 6</gadget>
<output>18</output>

<result>18</result>