The task of processing a batch of garments is allocated to two workshops A and B according to the ratio of 4:5. The actual production of workshop A is 450 sets, which exceeds (1/4) of the allocated tasks. How many sets of clothes are there in total?
一批加工服装的任务按4：5分配给甲、乙两个车间，实际甲车间生产了450套，超过分配任务的(1/4)．这批服装共有多少套？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">450 / (5/4)</gadget>
<output>360</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">360 / (4/9)</gadget>
<output>810</output>

<result>810</result>