The peach orchard area in the garden is (6/7) that of an apple orchard, and (6/11) that of a pear orchard. It is known that the pear orchard is 20 hectares larger than the apple orchard. How many hectares does the pear orchard have?
园里桃园面积是苹果园的(6/7)，又是梨园的(6/11)．己知梨园比苹果园多20公顷，梨园有多少公顷？
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">6 / 11</gadget>
<output>6/11 = around 0.545455</output>

<gadget id="calculator">(6/7) / (6/11)</gadget>
<output>11/7 = around 1.571429</output>

<gadget id="calculator">(11/7) - 1</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">20 / (4/7)</gadget>
<output>35</output>

<gadget id="calculator">35 * (11/7)</gadget>
<output>55</output>

<result>55</result>