A tent factory produced a batch of tents for the earthquake-stricken area in Wenchuan, Sichuan. There are two types of large and small tents. The ratio of large tents to small tents is 2:3. The ratio of small tents is 5:3. How many tents are there in total?
某帐篷厂为四川汶川地震灾区生产一批帐篷，有大小两种型号，大帐篷与小帐篷的数量比为2：3，根据实际需要生产的大帐篷比原计划多1800顶，实际大帐篷与小帐篷的数量比为5：3，这批帐篷一共多少顶？
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(5/3) * 3</gadget>
<output>5</output>

<gadget id="calculator">5 - 2</gadget>
<output>3</output>

<gadget id="calculator">1_800 / 3</gadget>
<output>600</output>

<gadget id="calculator">600 * 2</gadget>
<output>1_200</output>

<gadget id="calculator">3 * 600</gadget>
<output>1_800</output>

<gadget id="calculator">1_200 + 1_800 + 1_800</gadget>
<output>4_800</output>

<result>4_800</result>