1) 80=2*2*2*2*5; 96=2*2*2*2*2*3; НОД=2*2*2*2=16
80/96 = (80:16)/(96:16) = 5/6
2) 15=3*5; 120=2*2*2*3*5; НОД=3*5=15
15/120 = (15:15)/(120:15) = 1/8
3) 36=2*2*3*3; 540=2*2*3*3*3*5; НОД=2*2*3*3=36
36/540 = (36:36)/(540:36) = 1/15
4) 135=3*3*3*5; 240=2*2*2*2*3*5; НОД=3*5=15
135/240 = (135:15)/(240:15) = 9/16
5) 125=5*5*5; 175=5*5*7; НОД=5*5=25
125/175 = (125:25)/(175:25) = 5/7
6) 124=2*2*31; 136=2*2*2*17; НОД=2*2=4
124/136 = (124:4)/(136:4) = 31/34