Xiao Ming reads a story book. He reads the whole book (1/9) on the first day and 24 pages on the second day. The ratio of the number of pages read in two days to the number of remaining pages is 1:4. This book How many pages are there?
小明看一本故事书，第一天看了全书的(1/9)，第二天看了24页，两天看了的页数与剩下页数的比是1：4，这本书共有多少页？
<gadget id="calculator">1 + 4</gadget>
<output>5</output>

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

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(1/5) - (1/9)</gadget>
<output>4/45 = around 0.088889</output>

<gadget id="calculator">24 / (4/45)</gadget>
<output>270</output>

<result>270</result>