There are 80 peach trees in the orchard, which are pear trees (4/5), and pear trees are apple trees (4/5), how many apple trees are there?
果园里有80棵桃树，是梨树的(4/5)，梨树是苹果树的(4/5)，苹果树有多少棵？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">80 / (4/5) / (4/5)</gadget>
<output>125</output>

<result>125</result>