There is a square with a perimeter of 48 cm and a rectangle with the same perimeter. The width of the rectangle is 1/7 of the length. What is the area of the rectangle equal to the area of the square?
有周长是48厘米的正方形和同样周长的长方形，长方形的宽是长的(1/7)，这个长方形面积是正方形面积的多少．
<gadget id="calculator">1 + 7</gadget>
<output>8</output>

<gadget id="calculator">48 / 2 / 8</gadget>
<output>3</output>

<gadget id="calculator">3 * 7</gadget>
<output>21</output>

<gadget id="calculator">48 / 2</gadget>
<output>24</output>

<gadget id="calculator">24 - 21</gadget>
<output>3</output>

<gadget id="calculator">21 * 3</gadget>
<output>63</output>

<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<gadget id="calculator">12 * 12</gadget>
<output>144</output>

<gadget id="calculator">63 / 144</gadget>
<output>7/16 = around 0.4375</output>

<result>7/16 = around 0.4375</result>