The Summer Palace in Beijing covers an area of 280 hectares, of which the land area is equivalent to (1/3) of the water area. How many hectares is the land area of the Summer Palace?
北京颐和园占地280公顷，其中陆地面积相当于水域面积的(1/3)．则颐和园的陆地面积是多少公顷？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">280 / (4/3)</gadget>
<output>210</output>

<gadget id="calculator">280 - 210</gadget>
<output>70</output>

<result>70</result>