(1 2/11 + 2,4) : (2 2/11 - 2,4)
-------------------------------- =
(2,75 - 1 4/7) : (2,75 + 1 4/7
(13/11 + 12/5) : (13/11 - 12/5
--------------------------------- =
(11/4 - 11/7) : (11/4 + 11/7)
(65/55 + 132/55) : ( 65/55 - 132/55)
------------------------------------------ =
(77/28 - 44/28) : (77/28 + 44/28)
(197/55) : (67/55)
-------------------- =
(33/28) : (121/28)
(197/67) : 33/121 = 23837/2211 = 10 1727/2211