A card costs 2 cents, how much is the total cost of buying 6 cards?
一张卡片2分钱，买6张卡片一共是多少元．
<gadget id="calculator">6 / 100</gadget>
<output>3/50 = around 0.06</output>

<gadget id="calculator">2 * (3/50)</gadget>
<output>3/25 = around 0.12</output>

<result>3/25 = around 0.12</result>