A steel product (4/5) meter weighs (1/20) ton, find the length of this steel product in meters per ton, and what is the correct formula
一种钢材(4/5)米重(1/20)吨，求这种钢材每吨长多少米，正确算式是多少
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(4/5) / (1/20)</gadget>
<output>16</output>

<result>16</result>