In April this year, a certain school relayed the torch in order to welcome the Olympic Games. It is planned to make 3600 five-star red flags, the first time to do it, the plan is completed (3/4), the second time to do it, the plan is completed (3/5). How many five-star red flags did the students actually make?
今年四月份某校为了迎奥运圣火传递．计划制做3600面五星红旗，第一次做，完成计划的(3/4)，第二次做，完成计划的(3/5)．同学们实际制做了多少面五星红旗？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3_600 * (3/4)</gadget>
<output>2_700</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3_600 * (3/5)</gadget>
<output>2_160</output>

<gadget id="calculator">2_700 + 2_160</gadget>
<output>4_860</output>

<result>4_860</result>