There are 48 peach trees in the orchard, and the number of pear trees is 25% more than that of peach trees, and 20% less than that of apple trees. How many apple trees are there in the orchard?
果园里有桃树48棵，梨树的棵数比桃树多25%，比苹果树少20%．果园里有苹果树多少棵？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(5/4) / (4/5)</gadget>
<output>25/16 = around 1.5625</output>

<gadget id="calculator">48 * (25/16)</gadget>
<output>75</output>

<result>75</result>