Yucai Primary School newly purchased 200 books, the fifth grade will get this batch of books (2/5), and the sixth grade will get this batch of books (1/4). How many books are there for the fifth and sixth grades?
育才小学新购进200本书，五年级分得这批书的(2/5)，六年级分得这批书的(1/4)．五、六年级共分得多少本？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(2/5) + (1/4)</gadget>
<output>13/20 = around 0.65</output>

<gadget id="calculator">200 * (13/20)</gadget>
<output>130</output>

<result>130</result>