The diameter of circle A is 8 cm long, which is (2/3) the radius of circle B. What is the circumference of circle B in centimeters.
甲圆直径长8厘米，是乙圆半径的(2/3)．乙圆的周长是多少厘米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">3.14 * 12</gadget>
<output>37.68</output>

<result>37.68</result>