The school cafeteria bought 180 kilograms of flour, which was less than the rice (3/5). How many kilograms of flour and rice did the school buy?
学校食堂买来面粉180千克，比买来的大米少(3/5)．学校买来的面粉和大米共多少千克？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">180 / (2/5)</gadget>
<output>450</output>

<gadget id="calculator">450 + 180</gadget>
<output>630</output>

<result>630</result>