Li Ming rode a bicycle and traveled (45/4) kilometers in (3/4) hours. If you want to know how many hours it takes to cycle 1 kilometer on average, what is the formula?
李明骑自行车，(3/4)小时行了(45/4)千米，如果要求平均骑行1千米要多少小时，列式是多少
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">45 / 4</gadget>
<output>45/4 = around 11.25</output>

<gadget id="calculator">(3/4) / (45/4)</gadget>
<output>1/15 = around 0.066667</output>

<result>1/15 = around 0.066667</result>