1) 834: 2 3 139
2)
21: 3 7
63: 3 3 7
70: 2 5 7
НОД = 7
3)
Приводим к 36:
(3*6) /36 = 18/36
(2*12) /36 24/36
(5*4) /36 = 20/36
(4*2) /36 = 8/36
(1*1) /36 = 1/36
6)
1/5 = 3/15
2/3 = 10 / 15
(10/15) > (3/15)
2/3 > 1/5
7)
a) 1/5 + 4/9 = 9/45 + 20/45 = 29/45
b) 8/13 + 2/26 = 16/26 + 2/26 = 18/26 = 9/13
c) 4/12 + 1/6 + 2/24 = 8/24 + 4/24 + 2/24 = 14/24 = 7/12
Ну как бы всё.........
1) 834: 2 3 139
2)
21: 3 7
63: 3 3 7
70: 2 5 7
НОД = 7
3)
Приводим к 36:
(3*6) /36 = 18/36
(2*12) /36 24/36
(5*4) /36 = 20/36
(4*2) /36 = 8/36
(1*1) /36 = 1/36
6)
1/5 = 3/15
2/3 = 10 / 15
(10/15) > (3/15)
2/3 > 1/5
7)
a) 1/5 + 4/9 = 9/45 + 20/45 = 29/45
b) 8/13 + 2/26 = 16/26 + 2/26 = 18/26 = 9/13
c) 4/12 + 1/6 + 2/24 = 8/24 + 4/24 + 2/24 = 14/24 = 7/12
Ну как бы всё.........