Two cars drive opposite each other from places A and B. It takes 5 hours for car A to complete the journey, and 6 hours for car B to complete the journey. How many hours have passed before the two cars meet?
两车从甲乙两地相对开出，甲车行完全程要5小时，乙车行完全程要6小时，经过多少小时，两车相遇？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/5) + (1/6)</gadget>
<output>11/30 = around 0.366667</output>

<gadget id="calculator">1 / (11/30)</gadget>
<output>30/11 = around 2.727273</output>

<result>30/11 = around 2.727273</result>