1) (3621):12 = 756:12 = 632) (40420):60 = 16800:60 = 2803) (5678):3 = 2340:3 = 7804) (45*63):81 = 2835:81 = 35
1) (3621):12 = 756:12 = 63
2) (40420):60 = 16800:60 = 280
3) (5678):3 = 2340:3 = 780
4) (45*63):81 = 2835:81 = 35