A car (1/3) travels 30 kilometers in an hour. At this speed, how many kilometers can the car travel in (3/5) hours.
一辆汽车(1/3)小时行驶30千米．照这样的速度，这辆汽车(3/5)小时能行驶多少km．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">30 / (1/3)</gadget>
<output>90</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">90 * (3/5)</gadget>
<output>54</output>

<result>54</result>