12/91 + 17/91 =29/91
31/91-14/91=17/91
12/91 + 17/91 > 31/91 - 14/91
21/62 + 19/62 =40/62
85/62 - 17/62=68/62
21/62 + 19/62 < 85/62 - 17/62
12/91 + 17/91 =29/91
31/91-14/91=17/91
12/91 + 17/91 > 31/91 - 14/91
21/62 + 19/62 =40/62
85/62 - 17/62=68/62
21/62 + 19/62 < 85/62 - 17/62