A rectangular vegetable field is (3/8) kilometers long and (2/9) kilometers wide. What is the area of this vegetable field?
一块长方形菜地，长(3/8)千米，宽(2/9)千米，这块菜地的面积是多少？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(3/8) * (2/9)</gadget>
<output>1/12 = around 0.083333</output>

<result>1/12 = around 0.083333</result>