The library of Yuxin Primary School has 4,000 books, and the library of Xinfeng Primary School has 5,000 books. The books of Yuxin Primary School are much less than those of Xinfeng Primary School.
育新小学的图书馆有图书4000册，新风小学的图书馆有图书5000册，育新小学的图书比新风小学的图书少多少．
<gadget id="calculator">5_000 - 4_000</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 / 5_000</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>