A train travels 180km per hour, how many kilometers does it travel in (2/3) hours?
一列火车每小时形驶180km，(2/3)小时行驶多少千米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">180 * (2/3)</gadget>
<output>120</output>

<result>120</result>