There are two barrels of oil, A and B, and the oil in barrel A is 20 kg more than that in barrel B. After taking 5 kg from each of the two barrels, (1/4) of oil in barrel A is equal to (2/3) of oil in barrel B. How many kilograms of oil are there in two barrels?
有甲、乙两桶油，甲桶油比乙桶油多20千克，从两桶中各取出5千克后，甲桶油的(1/4)等于乙桶油的(2/3)，原来两桶共有多少千克油？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 20</gadget>
<output>5</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) * 5</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">(1/4) * 5</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(10/3) - (5/4)</gadget>
<output>25/12 = around 2.083333</output>

<gadget id="calculator">5 + (25/12)</gadget>
<output>85/12 = around 7.083333</output>

<gadget id="calculator">(2/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(85/12) / (5/12)</gadget>
<output>17</output>

<gadget id="calculator">17 + 20 + 17</gadget>
<output>54</output>

<result>54</result>