Solución:
1)
8/3 = (8*2) / (3*2) = 16/6
8/3= (8*3) / (3*3) = 24/9
8/3 = (8*4) /3*4) = 32/12
8/3 = (8*5) / (3*5) = 40/15
8/3 = ( 8*6) / (3*6) = 48/18
2) 4/5 = (4*2) / (5*2) = 8/10
4/5 = (4*3) / (5*3) = 12/15
4/5 = (4*4) / (3*4) = 16/12
4/5 = ( 4*5) / (3*5) = 20/15
4/5 = (4*6) / (5*6) = 24/30
3) 3/7= (3*2) / (7*2) = 6/14
3/7 = (3*3) / (7*3) = 9/21
3/7= ( 3*4) / (7*4) = 12/28
3/7 = ( 3*5) / (7*5) = 15/35
3/7= ( 3*6) / (7*6) = 18/42
4) 1/9= (1*2) / (9*2) = 2/18
1/9= ( 1*3) / (9*3) = 3/27
1/9= (1*4) / (9*4) = 4/36
1/9= (1*5) / (9*5) = 5/45
1/9 = (1*6) / ( 9*6) = 6/54
Suerte.Goez