Question

Сравните : 1 3/7; 8/8 7/9; 14/14 21/21; 3/5 4/3 ; 8/9 9/8 ; 6/5 9/5; 6/5 9/10 ; 2/11 13/13; 1 6/4.

Answer 1

1 больше 3/7; 8/8 больше 7/9; 14/14 равны 21/21; 3/5 меньше 4/3 ; 8/9 меньше 9/8 ; 6/5 меньше 9/5; 6/5 больше 9/10 ; 2/11 меньшн 13/13; 1 меньше 6/4.

Answer 2

1) 1 + 3/7 = 7/7 + 3/7 = 10/7 2) 8/8 + 7/9 = 1 + 7/9 = 16/9 3) 14/14 + 21/21 = 1 + 1 = 2 4) 3/5 + 4/3 = (9/15) + (20/15) = 29/15 5) 8/9 + 9/8 = (64/72) + (81/72) = 145/72 6) 6/5 + 9/5 = (30/25) + (45/25) = 75/25 = 3 7) 6/5 + 9/10 = (12/10) + (9/10) = 21/10 8) 2/11 + 13/13 = (2/11) + (1/1) = 2/11 + 11/11 = 13/11 9) 1 + 6/4 = 4/4 + 6/4 = 10/4 = 5/2

Таким образом, получаем следующие результаты: 1) 1 + 3/7 = 10/7 2) 8/8 + 7/9 = 16/9 3) 14/14 + 21/21 = 2 4) 3/5 + 4/3 = 29/15 5) 8/9 + 9/8 = 145/72 6) 6/5 + 9/5 = 3 7) 6/5 + 9/10 = 21/10 8) 2/11 + 13/13 = 13/11 9) 1 + 6/4 = 5/2