15/16: 10/24 15/17: 25/34 32/75: 48/25 38/75: 19/100

15/16:10/24 = 1 целая 7/8 , 15/17:25/34 = 1 целая 1/5, 32/75:48/25=2/9, 38/75:19/100 = 2 целых 2/3

1) 15/16:10/24=15*10/16*24=360/160=9/4=2 1/4=2,25
2) 15/17:25/34=15*34/17*25=510/425=85*6/85*5=6/5=1 1/5=1,2
3)32/75:48/25=32*25/75*48=800/3600=400*2/400*9=2/9
4)38/75:19/100=38*100/75*19=3800/1425=475*8/475*3=8/3=2*3+2/3=2 2/3