My sister is 10 years old this year, and my brother is older than her (1/5). How old is my brother this year?
妹妹今年10岁，哥哥比她大(1/5)，哥哥今年多少岁．
<gadget id="calculator">1 / 5</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">10 * (6/5)</gadget>
<output>12</output>

<result>12</result>