Lelejia uses about 40m**3 of water per month. If the water is recycled, the water consumption will be reduced (2/5). After water recycling, what is the monthly water consumption of Lelejia?
乐乐家一个月大约用水40m**3，如果水循环利用，用水量将减少(2/5)．水循环利用后，乐乐家-个月的用水量大约是多少？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">40 * (2/5)</gadget>
<output>16</output>

<gadget id="calculator">40 - 16</gadget>
<output>24</output>

<result>24</result>