GG.31 1/12 = 1/x + 1/y

Find all the groups of the integer x and y applicable to the formula of 1/12 = 1/x + 1/y.

Noted, suppose x =< y.






Answer
(x,y) = (13,156), (14,84), (15,60), (16,48), (18,36), (20,30), (21,28), (24,24)