There are 12 tablets in a box of medicine. Xiaowen takes half a tablet three times a day. How many days can this box of medicine be taken?
一盒药共12片，小文每天吃3次，每次吃半片．这盒药可以吃几天？
<gadget id="calculator">3 * 0.5</gadget>
<output>1.5</output>

<gadget id="calculator">12 / 1.5</gadget>
<output>8</output>

<result>8</result>