The school cafeteria bought a batch of rice, used up (3/5), and then bought another 80 kilograms, so it was the same as before. How many kilograms of rice did the cafeteria have?
学校食堂购进一批大米，用去(3/5)后，又买了80千克，这样就和原来一样多，食堂原来有大米多少千克．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">80 / (3/5)</gadget>
<output>400/3 = around 133.333333</output>

<result>400/3 = around 133.333333</result>