A steel pipe is (3/5) meters long and weighs (1/20) t. What is the average weight per meter?
一根钢管长(3/5)米，重(1/20)t，平均每米重多少t．
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/20) / (3/5)</gadget>
<output>1/12 = around 0.083333</output>

<result>1/12 = around 0.083333</result>