The paving team paved a road, paved 2.5 kilometers every day, and paved 5/8 of the total length in 7 days. How long is this road in kilometers?
铺路队铺一条路，每天铺2.5千米，7天铺好全长的5/8．这条路全长多少千米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(5/8) / 7</gadget>
<output>5/56 = around 0.089286</output>

<gadget id="calculator">2.5 / (5/56)</gadget>
<output>28</output>

<result>28</result>