It takes (1/5) minutes to saw a steel pipe into 2 sections, how many minutes will it take to saw 11 sections?
一根钢管锯成2段需(1/5)分钟，锯成11段需多少分钟．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">(1/5) / 1</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">11 - 1</gadget>
<output>10</output>

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

<result>2</result>