A steel product (4/5) meters weighs (1/25) tons, what is the length of this steel product in meters per ton.
一种钢材(4/5)米重(1/25)吨，这种钢材每吨长多少米．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

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

<result>20</result>