A book has 150 pages. Xiaoqiang read it on the first day (3/10), on the second day (1/5), how many pages should he read on the third day?
一本书150页，小强第一天看了(3/10)，第二天看了(1/5)，第三天从多少页看起．
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

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

<gadget id="calculator">(3/10) + (1/5)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">150 * (1/2)</gadget>
<output>75</output>

<gadget id="calculator">75 + 1</gadget>
<output>76</output>

<result>76</result>