There is a flower garden with an area of (1/4) hectares, in which the area of rose flowers accounts for (2/5) of the flower garden area, the area of rhododendrons accounts for (1/4) of the flower garden, and the rest are peonies, and the area of peony flowers What percentage of the garden is it?
有一个面积为(1/4)公顷的花圃，其中月季花的面积占花圃面积的(2/5)，杜鹃花的面积占花圃的(1/4)，其余是芍药花，芍药花的面积占花圃的几分之几？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (2/5) - (1/4)</gadget>
<output>7/20 = around 0.35</output>

<result>7/20 = around 0.35</result>