The school cafeteria buys 180kg of rice, which is 60kg less than (2/3) of flour. How many kg of flour?
学校食堂购进大米180kg，比面粉的(2/3)少60kg．面粉有多少kg？
<gadget id="calculator">60 + 180</gadget>
<output>240</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">240 / (2/3)</gadget>
<output>360</output>

<result>360</result>