It takes 6 hours for car A to travel from point A to point B, and it takes 8 hours for car B to travel from point B to point A. Car A and B drive from both places A and B at the same time. How long can they meet each other?
甲车从A地到B地要行驶6小时，乙车从B地到A地要行驶8小时，甲乙两车同时从AB两地相对开出，几小时可以相遇？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/6) + (1/8)</gadget>
<output>7/24 = around 0.291667</output>

<gadget id="calculator">1 / (7/24)</gadget>
<output>24/7 = around 3.428571</output>

<result>24/7 = around 3.428571</result>