A pigeon can fly 4.8 kilometers in 0.4 hours. According to this calculation, how many hours does it take for a pigeon to fly 18 kilometers?
一只鸽子0.4小时可飞行4.8千米，照这样计算，鸽子飞行18千米，需要多少小时？
<gadget id="calculator">4.8 / 0.4</gadget>
<output>12</output>

<gadget id="calculator">18 / 12</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>