The school cafeteria bought 250 kilograms of rice, which happened to be flour (5/7). How many kilograms of rice and flour were bought in the cafeteria?
学校食堂买来大米250千克，正好是买来面粉的(5/7)，食堂买来的大米和面粉一共有多少千克？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">250 / (5/7)</gadget>
<output>350</output>

<gadget id="calculator">350 + 250</gadget>
<output>600</output>

<result>600</result>