A motorcycle takes students to participate in theatrical performances at a speed of 40 kilometers per hour. After 6 minutes of departure, I found that I forgot to bring the costume, and a car chased at a speed of 60 kilometers per hour. How many hours did it take to catch up with the motorcycle?
一辆摩托车以每小时40千米的速度带学生参加文艺演出．出发6分钟后，发现了忘记带演出服，一辆汽车以每小时60千米的速度追赶，问几小时才能追上摩托车？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 - 40</gadget>
<output>20</output>

<gadget id="calculator">6 / 20</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(2/3) * (3/10)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>