A pile of sand weighs 240 tons, and (2/3) the mass of a pile of stones is equal to 60% of the mass of the pile of sand. How many tons does this pile of stones weigh?
一堆沙子重240吨，一堆石子质量的(2/3)与这堆沙子质量的60%相等．这堆石子重多少吨？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/5) / (2/3)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">240 * (9/10)</gadget>
<output>216</output>

<result>216</result>