A rectangle has the same area as a square. It is known that the side length of the square is 12 cm, the length of the rectangle is 18 cm, and the width of the rectangle.
一个长方形与一个正方形面积相同，已知正方形的边长为12厘米，长方形的长为18厘米，长方形的宽是多少．
<gadget id="calculator">12 / 18</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">12 * (2/3)</gadget>
<output>8</output>

<result>8</result>