Xiaohong reads a book. She reads (1/5) of the whole book on the first day and (1/2) of the first day on the second day. What fraction of the whole book is read on the second day?
小红看一本书，第一天看了全书的(1/5)，第二天看了第一天的(1/2)，第二天看了全书的几分之几？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/5) * (1/2)</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>