Miao Miao's father is 36 years old this year. This year, the ratio of father's age to Miao Miao's age is 9:2. Last year, Miao Miao's age was the same as his father's.
苗苗爸爸今年36岁，今年爸爸年龄和苗苗的年龄比是9：2，去年苗苗年龄是爸爸的多少．
<gadget id="calculator">36 / 9</gadget>
<output>4</output>

<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">36 - 1</gadget>
<output>35</output>

<gadget id="calculator">7 / 35</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(1/5) * 1</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>