There are 300 peach trees in the orchard, which belong to apple trees (3/4), and pear trees belong to apple trees (3/5). How many pear trees are there?
果园里有桃树300棵，是苹果树的(3/4)，梨树是苹果树的(3/5)．梨树有多少棵？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">300 / (3/4)</gadget>
<output>400</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">400 * (3/5)</gadget>
<output>240</output>

<result>240</result>