There are two barrels of oil, and barrel A contains (3/40) tons of oil. If (1/60) tons are taken out of barrel A and poured into barrel B, the two barrels weigh the same. How many tons of gasoline are there in barrel B?
有两桶油，甲桶油有(3/40)吨，如果从甲桶取出(1/60)吨倒入乙桶，两桶就一样重，原来乙桶汽油有多少吨？
<gadget id="calculator">3 / 40</gadget>
<output>3/40 = around 0.075</output>

<gadget id="calculator">1 / 60</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(3/40) - (1/60) - (1/60)</gadget>
<output>1/24 = around 0.041667</output>

<result>1/24 = around 0.041667</result>