Wuhan City plans to build the "Second Ring Road" for urban transportation, and the roads that need to be built include two cross-river passages, 16 overpasses and 23.7 kilometers of viaduct sections. It is known that the section of the viaduct is 0.3 kilometers shorter than the total length of the ring (6/13), so how many kilometers is the total length of the ring of the "Second Ring"?
武汉市计划修建城市交通"二环线"，其中需要新建的道路包括两座跨江通道、16座立交桥和23.7千米的高架桥路段．已知高架桥路段比环线总长的(6/13)少0.3千米，那么"二环线"的环线总长是多少千米．
<gadget id="calculator">23.7 + 0.3</gadget>
<output>24</output>

<gadget id="calculator">6 / 13</gadget>
<output>6/13 = around 0.461538</output>

<gadget id="calculator">24 / (6/13)</gadget>
<output>52</output>

<result>52</result>