Guangming Bookstore sold 4,800 children's books in the first half of the year, and the sales volume in the second half of the year increased by (1/6) compared to the first half of the year.
光明书店上半年销售儿童图书4800册，下半年的销售量比上半年增加了(1/6)，下半年销售比上半年增加了多少册．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">4_800 * (1/6)</gadget>
<output>800</output>

<result>800</result>