Mom, grandma and grandson all belong to monkeys. Grandma is 60 years old this year, and grandson is exactly the same age as grandma (1/5). How old is mother this year?
妈妈、奶奶和孙子都属猴，奶奶今年60岁，孙子的年龄正是奶奶的(1/5)，妈妈今年多少岁？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">60 * (1/5)</gadget>
<output>12</output>

<gadget id="calculator">12 + 24</gadget>
<output>36</output>

<result>36</result>