Xiaoliang walks from home to school at 5 kilometers per hour, and rides a bicycle at 13 kilometers per hour when he returns home. The time for cycling is 0.4 hours less than the time for walking. What is the distance between Xiaoliang’s home and school in kilometers? rice.
小亮从家步行去学校，每小时行5千米，回家时骑车，每小时行13千米，骑车的时间比步行的时间少0.4小时，小亮家到学校的距离是多少千米．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">(1/5) - (1/13)</gadget>
<output>8/65 = around 0.123077</output>

<gadget id="calculator">0.4 / (8/65)</gadget>
<output>3.25</output>

<result>3.25</result>