Two bottles of oil, big and small, have a total of 2.7 kg. After 0.2 kg of oil in the large bottle is used, the weight ratio of the remaining oil to the oil in the small bottle is 3:2. So how many kilograms of oil was originally contained in the large bottle.
大小两瓶油共有2.7千克，大瓶的油用去0.2千克后，剩下的油与小瓶的油的重量比是3：2那么大瓶原来装有油多少千克．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) * 2.7</gadget>
<output>4.05</output>

<gadget id="calculator">0.2 + 4.05</gadget>
<output>4.25</output>

<gadget id="calculator">1 + (3/2)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">4.25 / (5/2)</gadget>
<output>1.7</output>

<result>1.7</result>