A certain umbrella factory produced a batch of tents to support the Sichuan earthquake. On the first day, it produced 20% of the total number of tents, and on the second day it produced 7/20 of the total number of tents. A total of 4,400 tents were produced in two days. How many tents are there in total?
某伞厂为支援四川抗震赶产一批帐篷，第一天生产了总帐篷数的20%，第二天生产了总帐篷数的(7/20)，两天共生产帐篷4400顶．这批帐篷一共有多少顶？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">7 / 20</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(1/5) + (7/20)</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">4_400 / (11/20)</gadget>
<output>8_000</output>

<result>8_000</result>