A road, when reaching the full length (2/3), is 5 kilometers away from the midpoint, how many kilometers is the total length of this road? What is the column
一条公路，走到全长的(2/3)时，与中点相距5千米，这条公路全长是多少千米？列式是多少
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(2/3) - (1/2)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">5 / (1/6)</gadget>
<output>30</output>

<result>30</result>