794
а) 3/8 + 2 1/4 = 3/8 + 9/4 = 3/8 + 18/8 = 21/8 = 2 5/8
б) 1/4 + 3 1/6 = 1/4 + 19/6 = 3/12 + 38/12 = 41/12 = 3 5/12
795
а) 2 3/4 + 1 2/3 = 11/4 + 5/3 = 33/12 + 20/12 = 53/12 = 4 5/12
б) 8 3/5 + 1 9/10 = 43/5 + 19/10 = 86/10 + 19/10 = 105/10 = 10 5/10 =
= 10 1/2 = 10,5