Buying a pair of shoes costs 120 yuan, which is equivalent to the price of 15 pairs of socks. How much is it more expensive to buy a pair of shoes than a pair of socks?
买一双鞋120元，相当于15双袜子的价钱，买一双鞋比买一双袜子贵多少钱？
<gadget id="calculator">120 / 15</gadget>
<output>8</output>

<gadget id="calculator">120 - 8</gadget>
<output>112</output>

<result>112</result>