Someone originally planned that it would take 60 hours to go from A to B. Since the speed has increased (1/4), how many hours does it actually take?
某人原计划从A到B需60小时，由于速度提高了(1/4)，问实际需要多少小时？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 / (5/4)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">60 * (4/5)</gadget>
<output>48</output>

<result>48</result>