Wang Le's airplane model flies in the air for 2 minutes, which is shorter (1/5) than Li Yang's airplane model. How long did Li Yang's airplane model fly in the air?
王乐的飞机模型在空中飞行2分钟，比李扬的飞机模型的飞行时间短(1/5)．李扬的飞机模型在空中飞行了多长时间？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2 / (4/5)</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>