Li Hong reads a 150-page story book. She reads (1/5) of the whole book on the first day, and the rest (1/6) on the second day. How many pages did she read on the second day?
李红看一本150页的故事书，第一天看了全书的(1/5)，第二天看了剩下的(1/6)，第二天看了多少页？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">150 * (1/5)</gadget>
<output>30</output>

<gadget id="calculator">150 - 30</gadget>
<output>120</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">120 * (1/6)</gadget>
<output>20</output>

<result>20</result>