Xiao Ming and Xiao Hong read the same technical book. Xiao Ming read 84 pages a week, and Xiao Hong read 165 pages in half a month. Who is faster and by how much?
小明和小红看同一本科技书，小明一星期看了84页，小红半个月看了165页，谁的速度快，快多少？
<gadget id="calculator">84 / 7</gadget>
<output>12</output>

<gadget id="calculator">165 / 15</gadget>
<output>11</output>

<gadget id="calculator">12 - 11</gadget>
<output>1</output>

<result>1</result>