The street garden covers a total area of (9/10) hectares. Among them, the lawn covers an area of (1/5) hectare, and the flower garden covers an area equivalent to (1/10) of the total area. How many hectares is the lawn area larger than the flowerbed?
街心花园共占地(9/10)公顷．其中草坪占地(1/5)公顷，花圃占地相当于总面积的(1/10)．草坪面积比花圃大多少公顷？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(9/10) * (1/10)</gadget>
<output>9/100 = around 0.09</output>

<gadget id="calculator">(1/5) - (9/100)</gadget>
<output>11/100 = around 0.11</output>

<result>11/100 = around 0.11</result>