The speed ratio of passenger and freight vehicles is 3:2, and it will take (9/2) hours for the freight vehicles to travel between places A and B. If two passenger and freight vehicles depart from A and B at the same time, how many hours can they meet?
客货两车的速度比是3：2，货车行完甲乙两地全程要(9/2)小时．如果客货两车同时从甲乙两地出发，几小时可以相遇？
<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">(9/2) / 3</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) * 2</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / (9/2)</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(1/3) + (2/9)</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1 / (5/9)</gadget>
<output>9/5 = around 1.8</output>

<result>9/5 = around 1.8</result>