Wang Xiaohua read a 520-page science and technology book. He read (1/5) of this book on the first day, and he read it from the first page on the second day.
王小华看一体520页的科技书，第一天读了这本书的(1/5)，第二天他从第多少页读起．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">520 * (1/5)</gadget>
<output>104</output>

<gadget id="calculator">104 + 1</gadget>
<output>105</output>

<result>105</result>