The perimeter of an isosceles triangle is 14 decimeters, and the ratio of the length of the base to a waist is 3:2. What is the length of the base of an isosceles triangle?
一个等腰三角形的周长是14分米，底边与一条腰的长度比是3：2，等腰三角形的底边长是多少分米．
<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>