There are 75 peach trees in the orchard, and the number of pear trees is 2/3 of that of peach trees and 5/7 of apple trees. How many apple trees are there?
果园里有桃树75棵，梨树的棵数是桃树的(2/3)，同时又是苹果树的(5/7)，苹果树有多少棵？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">(2/3) / (5/7)</gadget>
<output>14/15 = around 0.933333</output>

<gadget id="calculator">75 * (14/15)</gadget>
<output>70</output>

<result>70</result>