(1/8) of a pile of coal is (9/4) tons, how many tons is (2/3) of this pile of coal.
一堆煤用去(1/8)是(9/4)吨，这堆煤的(2/3)是多少吨．
<gadget id="calculator">9 / 4</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(9/4) / (1/8)</gadget>
<output>18</output>

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

<gadget id="calculator">18 * (2/3)</gadget>
<output>12</output>

<result>12</result>