The four Xinhua dictionaries have a total thickness of 1 decimeter. What is the thickness of a book in decimeters.
四本新华字典一共厚1分米．一本的厚度是多少分米．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>