The motorcycle travels 80 kilometers per hour, which is (4/5) the distance traveled by the train per hour. How many kilometers per hour does the train travel?
摩托车每小时行80千米，是火车每小时行的路程的(4/5)，火车每小时行多少千米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">80 / (4/5)</gadget>
<output>100</output>

<result>100</result>