certain class of students went to a picnic. When eating, each person got a rice bowl, 2 people got a vegetable bowl, and 3 people got a soup bowl. They shared 55 bowls. How many students are there in this class?
某班学生去野炊，吃饭时每人一个饭碗，2人一个菜碗，3人一个汤碗，共用了55个碗，这个班共有多少学生？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/2) + (1/3)</gadget>
<output>11/6 = around 1.833333</output>

<gadget id="calculator">55 / (11/6)</gadget>
<output>30</output>

<result>30</result>