а) 1/2 - 1/8 = 4/8 - 1/8 = 3/8
б) 1/2 - 1/3 = 3/6 - 2/6 = 1/6
в) 2/3 - 4/9 = 6/9 - 4/9 = 2/9
г) 2/3 - 1/5 = 10/15 - 3/15 = 7/15
д) 7/10 - 1/5 = 35/50 - 10/50 = 25/50 = 1/2
е) 3/10 - 2/15 = 9/30 - 4/30 = 5/30 = 1/6
ж) 5/9 - 5/12 = 20/36 - 15/36 = 5/36
з) 9/10 - 3/4 = 36/40 - 30/40 = 6/40 = 3/20
а) 1/2 - 1/8 = 4/8 - 1/8 = 3/8
б) 1/2 - 1/3 = 3/6 - 2/6 = 1/6
в) 2/3 - 4/9 = 6/9 - 4/9 = 2/9
г) 2/3 - 1/5 = 10/15 - 3/15 = 7/15
д) 7/10 - 1/5 = 35/50 - 10/50 = 25/50 = 1/2
е) 3/10 - 2/15 = 9/30 - 4/30 = 5/30 = 1/6
ж) 5/9 - 5/12 = 20/36 - 15/36 = 5/36
з) 9/10 - 3/4 = 36/40 - 30/40 = 6/40 = 3/20