A paving team is paving a section of the road. After working 3.5 hours in the morning, 164.85 meters were paved, and 4.5 hours in the afternoon, 206.55 meters were paved. Is paving faster in the morning or faster in the afternoon? How much faster?
一支铺路队正在铺一段公路．上午工作3.5小时，铺了164.85米，下午工作4.5小时，铺了206.55米．上午铺路速度快还是下午铺路速度快？快多少？
<gadget id="calculator">164.85 / 3.5</gadget>
<output>47.1</output>

<gadget id="calculator">206.55 / 4.5</gadget>
<output>45.9</output>

<gadget id="calculator">47.1 - 45.9</gadget>
<output>1.2</output>

<result>1.2</result>