The swimming pool is 64 meters long, Xiao Ming swims 8 meters per minute, how long does it take him to swim back and forth?
游泳池长64米，小明每分钟游8米，他游一个来回要花多长时间？
<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">64 * (1/4)</gadget>
<output>16</output>

<result>16</result>