pile of coal has already transported 47 tons, and there are still 18 tons left. What fraction of this pile of coal has been removed?
一堆煤已经运走47吨，还剩下18吨，运走这堆煤的几分之几？
<gadget id="calculator">47 + 18</gadget>
<output>65</output>

<gadget id="calculator">47 / 65</gadget>
<output>47/65 = around 0.723077</output>

<result>47/65 = around 0.723077</result>