The perimeter of an isosceles triangle is 14 cm, the ratio of the base to the length of a waist is 3:2, what is the length of the base of the isosceles triangle in cm?
一个等腰三角形的周长是14厘米，底边与一条腰的长度之比是3：2，等腰三角形的底边长是多少厘米．
<gadget id="calculator">3 + 2 + 2</gadget>
<output>7</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">14 * (3/7)</gadget>
<output>6</output>

<result>6</result>