This year, the combined age of Xiaofang and her mother is 42 years old. How many years later, the combined age of Xiaofang and her mother is 56 years old.
今年小芳和妈妈的年龄和是42岁，多少年后小芳和妈妈年龄和是56岁．
<gadget id="calculator">56 - 42</gadget>
<output>14</output>

<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<result>7</result>