Пошаговое объяснение:
105/600 (: 15) = 7/40 и 140/450 (: 10) = 14/45 и 45/400 (:5) = 9/80
30/75 = 2/5 и 280/520 (:40) = 7/13 и 45/75 = 3/5
105/450 = 7/30 и 45/225 = 1/5 и 140/680 = 7/34
135/560 =27/112 и 130/390 = 1/3 и 200/260 = 10/13
105/600 = 7/40
140/450 = 14/45
45/400 = 9/80
220/660 = 1/3
30/75 = 2/5
280/520 = 7/13
45/75 = 3/5
105/450 = 7/30
45/225 = 1/5
140/680 = 7/34
135/560 = 27/112
130/390 = 1/3
200/260 = 10/13
Пошаговое объяснение:
105/600 (: 15) = 7/40 и 140/450 (: 10) = 14/45 и 45/400 (:5) = 9/80
30/75 = 2/5 и 280/520 (:40) = 7/13 и 45/75 = 3/5
105/450 = 7/30 и 45/225 = 1/5 и 140/680 = 7/34
135/560 =27/112 и 130/390 = 1/3 и 200/260 = 10/13