There is a barrel of oil in the school cafeteria, used up (1/3) in May, and there is 48 kg of oil left in the barrel, and the barrel of oil used up in June (2/5), how much is the weight of the oil used in June?
学校食堂有一桶油，五月份用去(1/3)，桶里还剩48千克油，六月份用去这桶油的(2/5)，六月份用去的油重多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">48 / (2/3)</gadget>
<output>72</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">72 * (2/5)</gadget>
<output>144/5 = around 28.8</output>

<result>144/5 = around 28.8</result>