The ratio of the number of books on the two bookshelves A and B is 2:5. After the number of books on the A bookshelf increases by 360, the ratio of the number of books on the two bookshelves A and B is 5:8. How many books are there in the two bookshelves now? Book?
甲、乙两个书架上的本数比是2：5，甲书架上的书增加360本后，甲、乙两个书架上的书的本数的比是5：8，这两个书架现在共有多少本？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(5/8) - (2/5)</gadget>
<output>9/40 = around 0.225</output>

<gadget id="calculator">360 / (9/40)</gadget>
<output>1_600</output>

<gadget id="calculator">1_600 * (5/8)</gadget>
<output>1_000</output>

<gadget id="calculator">1_600 + 1_000</gadget>
<output>2_600</output>

<result>2_600</result>