б) 3/8 + 2 1/4 = 6/8 + 2 2/8 = 8/8 + 2/8 = 10/8 = 1 2/8 = 1 1/4
г) 5 2/15 + 3 2/9 = 5 + 3 + 2/15 + 2/9 = 8 + 17/45 + 10/45 = 8 27/45 = 8 3/5
е) 4 3/5 + 10 1/4 = 4 + 10 + 3/5 + 1/4 = 14 + 3/5 + 1/4 = 14 + 12/20 + 5/20 = 14 + 17/20 = 14 17/20
б) 3/8 + 2 1/4 = 6/8 + 2 2/8 = 8/8 + 2/8 = 10/8 = 1 2/8 = 1 1/4
г) 5 2/15 + 3 2/9 = 5 + 3 + 2/15 + 2/9 = 8 + 17/45 + 10/45 = 8 27/45 = 8 3/5
е) 4 3/5 + 10 1/4 = 4 + 10 + 3/5 + 1/4 = 14 + 3/5 + 1/4 = 14 + 12/20 + 5/20 = 14 + 17/20 = 14 17/20