Xiao Ming spent a total of 87.8 yuan on comic books and story books. It cost 39.2 yuan to buy comic books and 6 storybooks. How much is each storybook?
小明买连环画和故事书一共花了87.8元．买连环画花了39.2元，买了6本故事书，每本故事书多少元？
<gadget id="calculator">87.8 - 39.2</gadget>
<output>48.6</output>

<gadget id="calculator">48.6 / 6</gadget>
<output>8.1</output>

<result>8.1</result>