A person walks along the straight street, every 2 minutes a bus comes to the front, every 8 minutes a bus comes behind, the speed of the bus is the same, the bus station sends a bus every how many minutes.
一个人沿直街行走，每2分钟迎面开来一辆公共汽车，每8分钟身后开来一辆公共汽车，公共汽车的速度相同则公共汽车站每隔多少分钟发一辆公共汽车．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/8) + (1/2)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(5/8) / 2</gadget>
<output>5/16 = around 0.3125</output>

<gadget id="calculator">1 / (5/16)</gadget>
<output>16/5 = around 3.2</output>

<result>16/5 = around 3.2</result>