The price of 12 sticks of toothpaste is equal to the price of 20 sticks of toothbrush. Each toothbrush is 1.5 yuan. How much is each stick of toothpaste?
12枝牙膏的价钱等于20枝牙刷的价钱，牙刷每枝1.5元，牙膏每枝多少元？
<gadget id="calculator">20 / 15</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">1.5 * (4/3)</gadget>
<output>2</output>

<result>2</result>