(1/4) of a barrel of oil is 12 kilograms, how many kilograms is (5/6) of it?
一桶油的(1/4)是12千克，它的(5/6)是多少千克．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">12 / (1/4)</gadget>
<output>48</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">48 * (5/6)</gadget>
<output>40</output>

<result>40</result>