The area of the base of a cylinder is (3/7) decimeter squared and the height is (2/3) decimeter. What is its volume?
圆柱的底面积是(3/7)平方分米，高是(2/3)分米，它的体积是多少立方分米．
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/7) * (2/3)</gadget>
<output>2/7 = around 0.285714</output>

<result>2/7 = around 0.285714</result>