From place A to place B, the plan is to travel 40 kilometers per hour and arrive in 6 hours, but actually travel 5 kilometers per hour, how many hours will it take to arrive? (Solve with ratio)
从甲地到乙地，计划每小时行40千米，6小时到达，实际每小时多行5千米，实际多少小时到达？(用比例解)
<gadget id="calculator">40 * 6</gadget>
<output>240</output>

<gadget id="calculator">40 + 5</gadget>
<output>45</output>

<gadget id="calculator">240 / 45</gadget>
<output>16/3 = around 5.333333</output>

<result>16/3 = around 5.333333</result>