Xiao Ming reads a 320-page storybook. He reads (1/4) of the whole book on the first day and the rest (1/5) on the second day. (Ask a three-step calculation question and answer it)
小明读一本书320页的故事书，第一天读了全书的(1/4)，第二天读了余下的(1/5)．(提一个三步计算的问题，并解答)
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">320 * (3/4)</gadget>
<output>240</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">240 * (1/5)</gadget>
<output>48</output>

<gadget id="calculator">320 - 240 - 48</gadget>
<output>32</output>

<result>32</result>