а) 25/100 (1/4); 2/5 (0.4); 6/10 (0.6); 20/50 (0.4); 1/2 (0.5); 7/8 (0.875)
б) 12/20 (0.6); 20/25 (0.8); 1/2 (0.5); 2/5 (0.4); 3/4 (0.75)
в) 12/25 (0.48); 8/12 (0.66); 2/3 (0.66); 1/2 (0.5); 5/6 (0.83)
а) 25/100 (1/4); 2/5 (0.4); 6/10 (0.6); 20/50 (0.4); 1/2 (0.5); 7/8 (0.875)
б) 12/20 (0.6); 20/25 (0.8); 1/2 (0.5); 2/5 (0.4); 3/4 (0.75)
в) 12/25 (0.48); 8/12 (0.66); 2/3 (0.66); 1/2 (0.5); 5/6 (0.83)