The number A is 20% greater than the number B, and the number B is 20% greater than the number C, so how much is A greater than the number C?
甲数比乙数大20%，乙数比丙数大20%，则甲数比丙数大百分之几？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) * (6/5)</gadget>
<output>36/25 = around 1.44</output>

<gadget id="calculator">(36/25) - 1</gadget>
<output>11/25 = around 0.44</output>

<result>11/25 = around 0.44</result>