Xiaoming's father: "I am 37 years old this year." Xiaoming's grandpa: "Xiaoming's father is 11 years younger than my age (2/3). Guess how old I am this year?"
小明爸爸："我今年37岁了．"小明爷爷："小明爸爸比我的年龄的(2/3)还少11岁，猜我今年多大年龄？"
<gadget id="calculator">37 + 11</gadget>
<output>48</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">48 / (2/3)</gadget>
<output>72</output>

<result>72</result>