What is the ratio of (3/5) ton: 400 kg.
(3/5)吨：400千克的比值是多少．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) / 400</gadget>
<output>3/2_000 = around 0.0015</output>

<gadget id="calculator">(3/2_000) * 1_000</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>