The road construction team built a section of road and completed it 8 days ahead of schedule. The number of days saved was the planned number of days (4/15). How many days did it actually take to build this section of road?
修路队修筑一段路，提前8天完成，少用的天数是计划天数的(4/15)，修筑这段路实际用了多少天？
<gadget id="calculator">4 / 15</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">8 / (4/15)</gadget>
<output>30</output>

<gadget id="calculator">30 - 8</gadget>
<output>22</output>

<result>22</result>