Lin Lin has read a book with 182 pages in total. The ratio of the number of pages he has read to the number of pages he has not read is 2:5. How many pages have he read?
林林看了一本书共182页，已读完的页数与未读完的页数的比是2：5，已经读了多少页？
<gadget id="calculator">2 + 5</gadget>
<output>7</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">182 * (2/7)</gadget>
<output>52</output>

<result>52</result>