Wanlv Garden is the largest open tropical seaside ecological garden landscape in Haikou City, covering an area of 83 hectares. The area of Binhai Park is about 4/5 of the area of Wanlu Garden. How many hectares is the area of Binhai Park?
万绿园是海口市最大的开放性热带海滨生态园林风景，占地面积83公顷，滨海公园的面积大约是万绿园面积的(4/5)，滨海公园的面积大约是多少公顷？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">83 * (4/5)</gadget>
<output>332/5 = around 66.4</output>

<result>332/5 = around 66.4</result>