A canteen shipped 500 tons of rice in March, which was 2/3 more than vegetables. How many tons of vegetables were shipped in?
某食堂，3月运入大米500吨，比运入的蔬菜多(2/3)，运入蔬菜多少吨？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 + (2/3)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">500 / (5/3)</gadget>
<output>300</output>

<result>300</result>