Xiaoying is 10 years old this year. Xiaoying's age is that of her father (2/7). How old is Xiaoying's father this year?
小盈今年10岁，小盈的年龄是爸爸的(2/7)，小盈的爸爸今年多少岁？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">10 / (2/7)</gadget>
<output>35</output>

<result>35</result>