1) 42/24 = 7/4, 35/77 = 5/11, 48/60 = 4/5, 72/96 = 3/42) 10/100 = 1/10, 400/1000 = 2/5, 600/800 = 3/4, 800/1000 = 4/53) 72/90 = 4/5, 60/105 = 4/7, 45/150 = 3/10, 84/120 = 7/104) 56/70 = 4/5, 36/90 = 2/5, 66/110 = 3/5, 96/160 = 3/5
1) 42/24 = 7/4, 35/77 = 5/11, 48/60 = 4/5, 72/96 = 3/4
2) 10/100 = 1/10, 400/1000 = 2/5, 600/800 = 3/4, 800/1000 = 4/5
3) 72/90 = 4/5, 60/105 = 4/7, 45/150 = 3/10, 84/120 = 7/10
4) 56/70 = 4/5, 36/90 = 2/5, 66/110 = 3/5, 96/160 = 3/5