Mom bought 6 plexiglass buckles for 1.5 yuan. If you buy the same button for 4.5 yuan, how many can you buy?
妈妈用1.5元买了6个有机玻璃扣．如果用4.5元买同样的纽扣，可以买多少个？
<gadget id="calculator">1.5 / 6</gadget>
<output>0.25</output>

<gadget id="calculator">4.5 / 0.25</gadget>
<output>18</output>

<result>18</result>