The planting area of chrysanthemums in a demonstration area of Huaxiang is 30 hectares, and the planting area of roses is 5/6 of that of chrysanthemums. How many hectares are the planting areas of roses?
某花乡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)，玫瑰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">30 * (5/6)</gadget>
<output>25</output>

<result>25</result>