а) 5/20 = 1/4
б) 4/14 = 2/7
в) 3/15= 1/5
г) 10/12 = 5/6
д) 25/35 = 5/7
ж) 28/35 = 4/5
з) 42/63 = 6/9 = 2/3
е) 25/60 = 5/12
а) 5/20 = 1/4
б) 4/14 = 2/7
в) 3/15= 1/5
г) 10/12 = 5/6
д) 25/35 = 5/7
ж) 28/35 = 4/5
з) 42/63 = 6/9 = 2/3
е) 25/60 = 5/12