Two oil barrels are filled with the same amount of oil, the first barrel is used (1/4), the second barrel is used (2/5), and then 8 kg is taken from the first barrel and poured into the second barrel. At this time The second barrel is the first barrel (13/14). How many kilograms of oil were originally contained in the two barrels?
两只油桶装了同样多的油，第一桶用去(1/4)，第二桶用去(2/5)以后，再从第一桶取出8千克倒入第二桶，这时第二桶是第一桶的(13/14)，两桶油原来各装多少千克？
<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">13 + 14</gadget>
<output>27</output>

<gadget id="calculator">14 / 27</gadget>
<output>14/27 = around 0.518519</output>

<gadget id="calculator">(5/9) - (14/27)</gadget>
<output>1/27 = around 0.037037</output>

<gadget id="calculator">8 / (1/27)</gadget>
<output>216</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/4) + (3/5)</gadget>
<output>27/20 = around 1.35</output>

<gadget id="calculator">216 / (27/20)</gadget>
<output>160</output>

<result>160</result>