There are 40 peach trees, which belong to poplar trees (5/8), and the number of willow trees to that of poplar trees (3/4). How many willow trees are there?
桃树有40棵，是杨树的(5/8)，柳树的棵数是杨树的(3/4)，柳树有多少棵？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">40 / (5/8)</gadget>
<output>64</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">64 * (3/4)</gadget>
<output>48</output>

<result>48</result>