A story book has 200 pages. Xiaoli read the whole book (1/5) on the first day and 40% of the whole book on the second day. How many pages are left?
一本故事书200页，小立第一天看全书的(1/5)，第二天看全书的40%，还剩多少页？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(1/5) + (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">200 * (2/5)</gadget>
<output>80</output>

<result>80</result>