A story book has 820 pages. I read (1/4) of the whole book in the first week, and (8/5) of the first week in the second week. How many pages did I read in the second week?
一本故事书有820页，第一周看了全书的(1/4)，第二周看的是第一周的(8/5)，第二周看了多少页？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">8 / 5</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">820 * (1/4) * (8/5)</gadget>
<output>328</output>

<result>328</result>