Mingming bought a box of cakes, and he planned to share them with 4 good friends. Mingming took one and gave the rest (1/5) to Liangliang; Xiaohong took two and gave the rest (1/3) to Xiaohua; finally Mingming took two more and gave the rest The last two are for Kobayashi. How many cakes are there in this box?
明明买了一盒蛋糕，他打算和4位好朋友分享．明明拿了一个，把剩下的(1/5)给亮亮；小红拿了两个，把剩下的(1/3)给小华；最后明明又拿了两个，把剩下的最后两个给小林．这盒蛋糕共有多少个？
<gadget id="calculator">2 + 2</gadget>
<output>4</output>

<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">4 / (2/3)</gadget>
<output>6</output>

<gadget id="calculator">6 + 2</gadget>
<output>8</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">8 / (4/5)</gadget>
<output>10</output>

<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<result>11</result>