An engineering team undertook to repair an 800-meter-long highway, and completed the full length (3/5) in 3 days. At this speed, how many days will it take to finish the road? (Solve with ratio)
某工程队承修一条800米长的公路，3天修了全长的(3/5)．照这样的速度，修完这条路还需要多少天？(用比例解)
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 3</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">3 - (9/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) / (3/5)</gadget>
<output>2</output>

<result>2</result>