Divide a 4m**2 circular flower bed into 5 pieces on average, what is the area of each piece in m**2, and the area of three of them occupies ((())/(())) of the 4m**2 flower bed.
把4m**2的圆形花坛平均分成5块，每块的面积是多少m**2，其中的三块面积占4m**2花坛的((())/(()))．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>