There are two oil barrels, A and B, if (1/10) kilograms are poured out from the oil barrel of A, and (4/15) kilograms are poured into the oil barrel of B, the total amount of the two oil barrels is just equal. How many kilograms of oil is in barrel A more than barrel B?
甲、乙两个油桶，如果从甲油桶倒出(1/10)千克，乙油桶倒进(4/15)千克，两个油桶的总数正好相等．甲油桶比乙油桶多多少千克油？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">4 / 15</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(1/10) + (4/15)</gadget>
<output>11/30 = around 0.366667</output>

<result>11/30 = around 0.366667</result>