There are two barrels of oil, big and small, and the weight of the small barrel is (3/5) the weight of the large barrel. If 16 kg is taken from the large barrel and added to the small barrel, the weight of the two barrels will be equal. What is the original weight of the barrel of oil in kilograms?
有大小两桶油，小桶油重量是大桶油重量的(3/5)．如果从大桶中取出16千克加入小桶中，两桶油的重量就相等了．大桶油原来的重量是多少千克？
<gadget id="calculator">16 + 16</gadget>
<output>32</output>

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

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">32 / (2/5)</gadget>
<output>80</output>

<result>80</result>