(1/4) ton = how many kilograms.
(1/4)吨=多少千克．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 1 * 1_000</gadget>
<output>250</output>

<result>250</result>