Xiaohong reads a science and technology book. She reads the whole book (2/9) on the first day, and reads the same amount on the second day as on the first day. What percentage of the whole book has she read in two days?
小红看一本科技书，第一天看了全书的(2/9)，第二天看的和第一天看的同样多，两天一共看了全书的几分之几？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(2/9) + (2/9)</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>