The combined age of Xiao Ning and Xiao Fang this year is 28 years old. Xiao Ning is 2 years younger than Xiao Fang. How old is Xiao Fang this year?
小宁与小芳今年的年龄和是28岁，小宁比小芳小2岁，小芳今年多少岁？
<gadget id="calculator">28 + 2</gadget>
<output>30</output>

<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<result>15</result>