The store shipped 180 kilograms of fruit, of which apples accounted for (1/5) and oranges accounted for (1/4). How many kilograms are there in total for apples and oranges?
商店运来水果180千克，其中苹果占(1/5)，桔子占(1/4)，苹果和桔子共有多少千克？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/5) + (1/4)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">180 * (9/20)</gadget>
<output>81</output>

<result>81</result>