There are 150 apples in the apple orchard, and the number of pear trees is 40% more than that of apple trees. How many pear trees are there?
苹果园有苹果150棵，梨树的棵数比苹果树多40%，梨树有多少棵？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 + (2/5)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">150 * (7/5)</gadget>
<output>210</output>

<result>210</result>