Xiaohong reads a storybook, the ratio of the number of pages she has read to the number of unread pages is 1:5, if there are 30 unread pages, how many pages does the storybook have?
小红读一本故事书，已读与未读的页数之比是1：5，若未读的还有30页，则这本故事书共有多少页？
<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">30 / (5/6)</gadget>
<output>36</output>

<result>36</result>