Xiao Ming reads a story book. He read 65 pages in the first 2 days, which is less than the remaining pages (2/7). How many pages does this storybook have?
小明看一本故事书，前2天看了65页，比剩下的页数少(2/7)．这本故事书一共有多少页？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">1 - (2/7)</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">65 / (5/7)</gadget>
<output>91</output>

<gadget id="calculator">65 + 91</gadget>
<output>156</output>

<result>156</result>