The road repair team repaired a road, originally planned to repair (3/5) kilometers per day, and the task can be completed in 50 days; if it repairs (2/3) kilometers per day, how many days can it be completed? (Solution by proportional method)
修路队修一条公路，原计划每天修(3/5)千米，50天可以完成任务；如果每天修(2/3)千米，几天可以修完？(用比例方法解)
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 50</gadget>
<output>30</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">30 / (2/3)</gadget>
<output>45</output>

<result>45</result>