The planting area of chrysanthemums in Xingbo Agricultural Demonstration Zone is 30 hectares, the planting area of roses is 5/6 of chrysanthemums, and the planting area of lilies is 4/5 of roses. How many hectares of lilies are planted?
兴博农业示范区菊花的种植面积是30公顷，玫瑰的种植面积是菊花的(5/6)，百合花的种植面积是玫瑰的(4/5)．百合花的种植面积是多少公顷？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">30 * (5/6) * (4/5)</gadget>
<output>20</output>

<result>20</result>