Xiaomu, Xiaolin, and Xiaomori are three people. Komori is 20% older than Xiaolin, and Xiaolin is 15% older than Xiaomu. By what percentage is Xiaomori older than Xiaomu?
小木、小林、小森三人，小森的年龄比小林大20%，小林的年龄比小木大15%，小森的年龄比小木大百分之几？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<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">(23/20) * (6/5)</gadget>
<output>69/50 = around 1.38</output>

<gadget id="calculator">(69/50) - 1</gadget>
<output>19/50 = around 0.38</output>

<result>19/50 = around 0.38</result>