Pour 2 liters of beer into 7 cups, how many liters of beer are in each cup?
把2升啤酒倒在7个杯子中，每个杯子中有多少升啤酒．
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<result>2/7 = around 0.285714</result>