A train travels 80 kilometers per hour and reaches its destination in (24/5) hours. If the train speeds up (1/5), how many hours will it take to reach its destination?
一列火车每小时行驶80千米，(24/5)小时到达目的地．如果这列火车提速(1/5)，那么只需要几小时就能到达目的地？
<gadget id="calculator">24 / 5</gadget>
<output>24/5 = around 4.8</output>

<gadget id="calculator">80 * (24/5)</gadget>
<output>384</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">80 * (6/5)</gadget>
<output>96</output>

<gadget id="calculator">384 / 96</gadget>
<output>4</output>

<result>4</result>