There are 320 students in the art interest class, which is 1/4 more than the English interest class. How many people are there in the English interest class?
美术兴趣班有320人，比英语兴趣班的人数多(1/4)，英语兴趣班有多少人？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">320 / (5/4)</gadget>
<output>256</output>

<result>256</result>