Honghua Kindergarten has prepared 55 bowls for the children in the big class. If one person has a rice bowl, two people have a vegetable bowl, and three people have a soup bowl, it is just enough. Please calculate how many children there are in this class?
红花幼儿园为大班小朋友准备了55只碗，如果一个人一只饭碗，两人一只菜碗，三人一只汤碗，则刚好够用，请计算一下这个班共有多少个小朋友？
<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>