There are 120 apple trees in the orchard, one peach tree is apple tree (3/4), and pear tree (5/7), how many pear trees are there in the orchard?
果园里有120棵苹果树，桃树的棵树是苹果树的(3/4)，又是梨树的(5/7)，果园里有梨树多少棵？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(3/4) / (5/7)</gadget>
<output>21/20 = around 1.05</output>

<gadget id="calculator">120 * (21/20)</gadget>
<output>126</output>

<result>126</result>