The cafeteria brought 24 tons of coal and used up (5/12), how many tons of coal are left in the cafeteria?
食堂运来24吨煤，用去了它的(5/12)，食堂还余多少吨煤？
<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">1 - (5/12)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">24 * (7/12)</gadget>
<output>14</output>

<result>14</result>