а) 54/72 = 3/4; 75/120 = 5/8; 17/51; 150/180 = 5/6б) 1813/396 = 234/234 = 1; 635/4212 = 210/504 = 5/12
а) 54/72 = 3/4; 75/120 = 5/8; 17/51; 150/180 = 5/6
б) 1813/396 = 234/234 = 1; 635/4212 = 210/504 = 5/12