A pile of coal is transported away (5/6), and there are still 60 tons left. How many tons does this pile of coal have?
一堆煤，运走(5/6)，还剩下60吨，这堆煤原有多少吨．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">60 / (1/6)</gadget>
<output>360</output>

<result>360</result>