box of orange juice is 48 yuan, 12 bottles per box. How much does Fangfang need to pay for 3 bottles?
一箱橙汁48元，每箱12瓶．芳芳要买3瓶，需要付多少元．
<gadget id="calculator">48 / 12</gadget>
<output>4</output>

<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<result>12</result>