A total of 12 small flags, each group of 3, 2 groups account for ((())/(())), how many small flags are there?
共12面小旗，每3面一组，2组占((())/(()))，是多少面小旗．
<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">12 * (1/2)</gadget>
<output>6</output>

<result>6</result>