а) 7 5/16 + 8 3/16 = 7 + 8 + 5/16 + 3/16 = 15 + 8/16 = 15 1/2
б) 5 10/13 + 4 11/13 = 5 + 4 + 10/13 + 11/13 = 9 + 21/13 = 10 8/13
в) 9 25/32 - 7 22/32 = 9 - 7 + 25/32 - 22/32 = 2 + 3/32 = 2 3/32
г) 14 - 3/19 = 14 - 3/19 = 14 - 0.157 = 13.843
д) 6 1/7 - 4 5/7 = 6 - 4 - 1/7 - 5/7 = 2 - 6/7 = 1 1/7
Уравнения:
а) x + 31 11/23 = 47 15/2x = 47 15/23 - 31 11/2x = 16 4/23
б) x - 8 3/26 = 7 25/2x = 7 25/26 + 8 3/2x = 16 28/2x = 17 2/2x = 17 1/13
а) 7 5/16 + 8 3/16 = 7 + 8 + 5/16 + 3/16 = 15 + 8/16 = 15 1/2
б) 5 10/13 + 4 11/13 = 5 + 4 + 10/13 + 11/13 = 9 + 21/13 = 10 8/13
в) 9 25/32 - 7 22/32 = 9 - 7 + 25/32 - 22/32 = 2 + 3/32 = 2 3/32
г) 14 - 3/19 = 14 - 3/19 = 14 - 0.157 = 13.843
д) 6 1/7 - 4 5/7 = 6 - 4 - 1/7 - 5/7 = 2 - 6/7 = 1 1/7
Уравнения:
а) x + 31 11/23 = 47 15/2
x = 47 15/23 - 31 11/2
x = 16 4/23
б) x - 8 3/26 = 7 25/2
x = 7 25/26 + 8 3/2
x = 16 28/2
x = 17 2/2
x = 17 1/13