To build a road, the length of the completed road (5/7) is less than 8 kilometers, and the rest is repaired (2/3). What is the total length of this road in kilometers?
修一条路，已修全长的(5/7)少8千米，剩下是已修的(2/3)，这条路全长是多少千米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">8 * (2/3)</gadget>
<output>16/3 = around 5.333333</output>

<gadget id="calculator">(16/3) + 8</gadget>
<output>40/3 = around 13.333333</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(5/7) * (2/3)</gadget>
<output>10/21 = around 0.47619</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(10/21) - (2/7)</gadget>
<output>4/21 = around 0.190476</output>

<gadget id="calculator">(40/3) / (4/21)</gadget>
<output>70</output>

<result>70</result>