Dad drove a car to participate in the self-driving tour. He drove 60 kilometers in the first (4/5) hours, which happened to be the whole (2/3) of the journey. How many hours will it take to complete the journey?
爸爸开车参加自驾游活动，前(4/5)小时行驶了60千米，刚好行了全程的(2/3)，行驶完全程还要多少小时？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 / (2/3)</gadget>
<output>90</output>

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

<gadget id="calculator">60 / (4/5)</gadget>
<output>75</output>

<gadget id="calculator">90 / 75</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) - (4/5)</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>