The school's new teaching building covers an area of 640 square meters, which is about (1/11) of the total campus area. How many square meters is the total campus area?
学校新建教学楼占地面积为640平方米，约是校园总面积的(1/11)，校园总面积约是多少平方米？
<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">640 / (1/11)</gadget>
<output>7_040</output>

<result>7_040</result>