Сократите дробь 105/600 140/450
45/400 220/660
30/75 280/520
45/75 105/450
45/225 140/680
135/560 130/390
200/260

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

ответ:

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: