A barrel of oil is used (3/4), exactly 12kg. How many kilograms does this barrel of oil weigh?
一桶油用去(3/4)，正好用去12kg．这桶油重多少千克？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">12 / (3/4)</gadget>
<output>16</output>

<result>16</result>