There are three kinds of fruit trees, namely apple tree, pear tree and orange tree, in the orchard. There are 360 apple trees, accounting for 1/5 of the total fruit trees. The ratio of pear trees to orange trees is 5:4. How many trees are there?
果园里栽了苹果树、梨树、橘子树三种果树，苹果树栽了360棵，占果树总棵树的(1/5)，梨树与橘子树棵树的比是5：4，梨树有多少棵？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">360 / (1/5)</gadget>
<output>1_800</output>

<gadget id="calculator">1_800 - 360</gadget>
<output>1_440</output>

<gadget id="calculator">5 + 4</gadget>
<output>9</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1_440 * (5/9)</gadget>
<output>800</output>

<result>800</result>