The distance between A and B is 468 kilometers. Two passenger and freight cars drive from A and B at the same time and meet each other for 3 hours. The speed of the passenger car is (6/7) of the truck. Find the speed of the passenger car.
甲乙两地相距468千米，客货两车从甲乙两地同时开出3小时相遇，客车的速度是货车的(6/7)，求客车的速度．
<gadget id="calculator">468 / 3</gadget>
<output>156</output>

<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">1 + (6/7)</gadget>
<output>13/7 = around 1.857143</output>

<gadget id="calculator">156 / (13/7)</gadget>
<output>84</output>

<gadget id="calculator">84 * (6/7)</gadget>
<output>72</output>

<result>72</result>