The highway from city A to city B is 540 kilometers long. Two cars, A and B, start from the two places at the same time and drive towards each other. How long have you met?
A城市到B城市的公路长540千米，甲、乙两辆汽车同时从两地出发相向而行，甲每小时行60千米，乙的速度是甲的(4/5)，两车经过多长时间相遇？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">60 * (4/5)</gadget>
<output>48</output>

<gadget id="calculator">48 + 60</gadget>
<output>108</output>

<gadget id="calculator">540 / 108</gadget>
<output>5</output>

<result>5</result>