A piece of steel is (4/5) meters long and weighs (4/25) tons, how many tons does the steel weigh per meter? What is the correct column
一种钢材长(4/5)米，重(4/25)吨，每米钢材重多少吨？正确列式为多少
<gadget id="calculator">4 / 25</gadget>
<output>4/25 = around 0.16</output>

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

<gadget id="calculator">(4/25) / (4/5)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>