Team A and Team B cooperate to install water pipes. Team A lays (9/2) meters per hour, and Team B lays (11/2) meters per hour. The two teams worked together for 50 minutes, how many meters of water pipes were laid in total?
甲、乙两队合作安装自来水管道，甲队每小时铺设(9/2)米，乙队每小时铺设(11/2)米．两队共同铺设50分钟，共铺设自来水管道多少米？
<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">11 / 2</gadget>
<output>11/2 = around 5.5</output>

<gadget id="calculator">(9/2) + (11/2)</gadget>
<output>10</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">10 * (5/6)</gadget>
<output>25/3 = around 8.333333</output>

<result>25/3 = around 8.333333</result>