The fast and slow cars leave from A and B at the same time. Their speed ratio is 5:4. The two cars meet on the way after driving for 1.5 hours, and then continue to move forward. When the fast car reaches the end, how long will it take for the slow car? To reach the end?
快、慢两车同时从A、B两地开出，它们的速度比是5：4，两车开出1.5小时在途中相遇，然后继续前进，当快车到达终点时，慢车还要多长时间才能到达终点？
<gadget id="calculator">5 + 4</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">1.5 / (4/9)</gadget>
<output>3.375</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1.5 / (5/9)</gadget>
<output>2.7</output>

<gadget id="calculator">3.375 - 2.7</gadget>
<output>0.675</output>

<result>0.675</result>