There are 240 apple trees in the orchard, which are less than the number of pear trees (2/5). How many grams of pear trees are there in the orchard?
果园里有苹果树240棵，比梨树的棵数少(2/5)，果园里有多少克梨树？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

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

<result>400</result>