The number of peach trees is 1/5 of that of pear trees. There are 300 peach trees. How many pear trees are there?
桃树的棵数是梨树的(1/5)，桃树有300棵，梨树有几棵？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">300 / (1/5)</gadget>
<output>1_500</output>

<result>1_500</result>