A rectangular piece of land is 100 meters wide, and its length is 1/5 greater than its width. What is the area of the land in square meters?
一块长方形地，宽100米，长比宽多(1/5)．这块地的面积是多少平方米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">100 * (6/5) * 100</gadget>
<output>12_000</output>

<result>12_000</result>