During the class reunion, I bought two bottles of Nutrition Express from the supermarket. Dongdong drank the first bottle (2/3), then opened the second bottle, and drank 4 small cups full, and then put The rest of the two bottles are combined to form a complete bottle of Nutrition Express. Do the math, how many small cups can a whole bottle of Nutrition Express be filled with?
同学聚会时从超市买了两瓶营养快线，东东先把第一瓶喝掉了(2/3)，接着把第二瓶打开后，又喝掉了满满的4小杯，然后把两瓶剩下的合起来，正好合成了一瓶完整的营养快线．算一算，一整瓶营养快线正好可以倒满多少小杯？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / (1/3)</gadget>
<output>12</output>

<result>12</result>