The construction of a 4.8-kilometer-long road was originally planned to be completed in 15 days, but the task was actually completed in 12 days. How much more kilometers was actually repaired per day than the original plan?
修一条长4.8千米的公路，原计划15天修完，实际12天就完成了任务，实际每天比原计划多修多少千米？
<gadget id="calculator">4.8 / 12</gadget>
<output>0.4</output>

<gadget id="calculator">4.8 / 15</gadget>
<output>0.32</output>

<gadget id="calculator">0.4 - 0.32</gadget>
<output>0.08</output>

<result>0.08</result>