A 5-meter-long rope, cut off (2/5) meters for the first time, and cut off (1/10) of the first time for the second time, how many meters are cut off for the second time?
一根5米长的绳子，第一次剪去(2/5)米，第二次剪去第一次的(1/10)，第二次剪去多少米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(2/5) * (1/10)</gadget>
<output>1/25 = around 0.04</output>

<result>1/25 = around 0.04</result>