Fold a 1-meter-long piece of paper in half and then fold it in half. How many meters is each section?
把一根1米长的纸条对折后再对折，每一段是多少米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 * (1/2) * (1/2)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>