Xiao Ming is a years old this year and is (1/5) older than Xiao Gang. How old is Xiaogang this year?
小明今年a岁，比小刚大(1/5)．小刚今年多少岁．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>