8/14 = 4/7 = 0,57
35/75 = 7/15 = 0,46
23/13 = 1,76
30/90 = 1/3 = 0,33
36/24 = 3/2 = 1,5
70/80 = 7/8 = 0,87
180/117 = 20/13 = 1,53
52/16 = 13/4 = 3,25
