There are 180 peach trees in the orchard, the number of apple trees is 5/6 of peach trees, and the number of pear trees is 4/5 of apple trees. How many pear trees are there in the orchard?
果园里有桃树180棵，苹果树的棵数是桃树的(5/6)，梨树的棵数是苹果树的(4/5)．果园里有梨树多少棵？
<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">180 * (5/6) * (4/5)</gadget>
<output>120</output>

<result>120</result>