The number of peach trees in the orchard is equivalent to (3/5) the number of pear trees and (3/7) the number of apple trees. If there are 180 fewer pear trees than apple trees, how many peach trees are there in the orchard?
果园里桃树的棵数相当于梨树棵数的(3/5)，相当于苹果树棵数的(3/7)．如果梨树比苹果树少180棵，这个果园里有桃树多少棵？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">1 - (5/7)</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">180 / (2/7)</gadget>
<output>630</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">630 * (3/7)</gadget>
<output>270</output>

<result>270</result>