There are 120 peach trees in the orchard, apple trees are peach trees (3/4), pear trees are apple trees (1/3), how many pear trees?
果园里有桃树120果，苹果树是桃树的(3/4)，梨树是苹果树棵数的(1/3)，梨树多少棵？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">120 * (3/4) * (1/3)</gadget>
<output>30</output>

<result>30</result>