How many kilograms is 3.6 tons (4/9)?
3.6吨的(4/9)是多少千克．
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">3.6 * (4/9) * 1_000</gadget>
<output>1_600</output>

<result>1_600</result>