(1/5) of A is 20, and B is (1/5) of 20. What is the sum of A and B?
A的(1/5)是20，B是20的(1/5)．A与B的和是多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">20 / (1/5)</gadget>
<output>100</output>

<gadget id="calculator">20 * (1/5)</gadget>
<output>4</output>

<gadget id="calculator">100 + 4</gadget>
<output>104</output>

<result>104</result>