Uncle is 36 years old this year, Xiaolan's age is uncle's (1/4), how old is Xiaolan this year.
叔叔今年有36岁，小兰的年龄是叔叔的(1/4)，小兰今年有多少岁．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">36 * (1/4)</gadget>
<output>9</output>

<result>9</result>