How many kilograms is less (1/4) than 80 tons?
比80吨少(1/4)是多少千克．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">80 * (3/4) * 1_000</gadget>
<output>60_000</output>

<result>60_000</result>