A pile of coal used up 24 tons, and there are 36 tons left. What fraction of the remaining coal is used?
一堆煤用去24吨，还剩下36吨，用去的占剩下的几分之几？
<gadget id="calculator">24 / 36</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>