Chang’an International Hotel shipped some rice and ate it (2/5), leaving 2 tons. How many tons of rice did the hotel ship?
长安国际酒店运来一些大米，吃了(2/5)，还剩下2吨，酒店运来大米多少吨？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 / (3/5)</gadget>
<output>10/3 = around 3.333333</output>

<result>10/3 = around 3.333333</result>