A woman was washing dishes by the river, and a neighbor asked her how many guests came to her house. She said: "The guests each use a rice bowl, every 3 people share a vegetable bowl, every 4 people share a soup bowl, and a total of 57 Only a bowl". How many guests have come to her house?
一位妇女在河边洗碗，邻居问她家里来了多少客人，她说："客人每人用一只饭碗，每3人合用一只菜碗，每4人合用一只汤碗，共用57只碗"．她家来了多少个客人．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/3) + (1/4)</gadget>
<output>19/12 = around 1.583333</output>

<gadget id="calculator">57 / (19/12)</gadget>
<output>36</output>

<result>36</result>