There are three numbers, number A is 40, number B is 80% of number A, and (2/3) of number C is number B, what is the average of these three numbers?
有三个数，甲数是40，乙数是甲数的80%，丙数的(2/3)是乙数，这三个数的平均数是多少．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">40 * (4/5)</gadget>
<output>32</output>

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

<gadget id="calculator">32 / (2/3)</gadget>
<output>48</output>

<gadget id="calculator">40 + 32 + 48</gadget>
<output>120</output>

<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<result>40</result>