
422.
12/8 = 3/2 = 1 1/2
20/16 = 5/4 = 1 1/4
35/25 = 7/5 = 1 2/5
46/32 = 23/16 = 1 7/16
56/12 = 14/3 = 4 2/3
105/45 = 7/3 = 2 1/3
90/65 = 18/13 = 1 5/13
427.
1) 17/5 = 3 2/5
20/7 = 2 6/7
43/10 = 4 3/10
60/11 = 5 5/11
2) 1 2/3 = 5/3
3 3/4 = 15/4
5 3/10 = 53/10
9 1/5 = 46/5