One barrel of oil is used (3/4), exactly 6 kg is used, how much does this barrel of oil weigh?
一桶油用去(3/4)，正好用去6千克，这桶油重多少千克？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">6 / (3/4)</gadget>
<output>8</output>

<result>8</result>