Fold a rope in half and then fold it in half again. The length of each fold is (3/10) meters. How long is the rope in meters?
把一根绳子对折再对折，量得每折的长度是(3/10)米，这根绳子长多少米？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) * 4</gadget>
<output>6/5 = around 1.2</output>

<result>6/5 = around 1.2</result>