The school is on the side of a road between Xiaohong and Xiaoming's family. After school, the two walked to their respective homes at the same time. Xiaoming walks (18/5) kilometers per hour, Xiaohong walks 3 kilometers per hour, and they both arrive home at the same time after (5/12) hours. How many kilometers are the distance between the two?
学校在小红和小明两家之间的一段公路边．放学后，两人同时向各自家里走去．小明每小时走(18/5)千米，小红每小时走3千米，(5/12)小时后两人同时到家．两家相距多少千米？
<gadget id="calculator">18 / 5</gadget>
<output>18/5 = around 3.6</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(18/5) * (5/12)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">3 * (5/12)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(3/2) + (5/4)</gadget>
<output>11/4 = around 2.75</output>

<result>11/4 = around 2.75</result>