The fruit shop shipped 180 kg of apples and 240 kg of pears, each 15 kg in a box, how many boxes less apples than pears?
水果店运来180千克苹果和240千克梨，每15千克装一箱，苹果比梨少装多少箱？
<gadget id="calculator">240 / 15</gadget>
<output>16</output>

<gadget id="calculator">180 / 15</gadget>
<output>12</output>

<gadget id="calculator">16 - 12</gadget>
<output>4</output>

<result>4</result>