The fourth grade needs to buy 5 mechanical pencils and 5 photo albums. It cost 28.75 yuan to buy a photo album, and 11.15 yuan to buy an automatic lead. How much is a photo album more expensive than an automatic lead?
四年级要买5枝自动铅笔和5本相册．买相册用了28.75元，买自动铅用了11.15元，一本相册比一枝自动铅贵多少元？
<gadget id="calculator">28.75 - 11.15</gadget>
<output>17.6</output>

<gadget id="calculator">17.6 / 5</gadget>
<output>3.52</output>

<result>3.52</result>