piece of iron wire used 12 meters for the first time, and it was used for the second time (6/7). How many meters are used for the two times?
一根铁丝，第一次用去12米，是第二次用去的(6/7)，两次一共用去多少米？
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">12 / (6/7)</gadget>
<output>14</output>

<gadget id="calculator">12 + 14</gadget>
<output>26</output>

<result>26</result>