A steel rail (4/5) meter weighs (1/25) ton, what is the calculation formula for the weight of 1 meter of this steel rail?
一种钢轨(4/5)米重(1/25)吨，要求这种钢轨1米重多少吨的算式是多少
<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(1/25) / (4/5)</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>