The sixth grade (1) class students went to the artificial lake for a spring outing. The car departed from the school and traveled the entire distance (3/4) in (4/5) hours. At this time, it was still 4 kilometers away from the artificial lake. At this speed, how many hours will it take to complete the journey?
六年级(一)班同学到人工湖去春游．汽车从学校出发，(4/5)小时行了全程的(3/4)，这时距离人工湖边还有4千米．照这样的速度，行完全程共用多少小时？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(4/5) / (3/4)</gadget>
<output>16/15 = around 1.066667</output>

<result>16/15 = around 1.066667</result>