(1/2) of a line segment is 2cm, what is the length of this line segment
一条线段的(1/2)是2cm，这条线段的长是多少
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / (1/2)</gadget>
<output>4</output>

<result>4</result>