a) 1 1 1 1 1 1 =
--- + --- - --- - --- + --- - ---
21 14 35 42 14 21
= 2
--- (aplimfic cu 2) + 3 (amplific cu 3) -
42 ---
42
1 1 1 1
--- - --- + --- (amplific cu 3) - --- =
35 42 42 21
= 2 3 1 1 1 1
--- + --- - --- + --- - --- - --- =
42 42 42 42 35 21
= 5 1 2
--- - --- - --- (amplific cu 2) =
42 35 42
= 3 1
--- (se aplimfica cu 5) - --- =
42 35
= 15 6 9 3
--- - --- = --- = ---
210 210 210 70
b) 1 1 11 7 1 1
4 --- - 1 --- - --- - --- + --- + --- =
6 9 8 24 10 15
= 25 10 33 7
--- - --- - --- (amplific cu 3) - --- +
6 9 24 24
1 1
--- + --- =
10 15
= 75 20
--- (amplific cu 3) - --- (amplific cu 2) -
18 18
26 1 1
--- (simplific cu 2) + --- + --- =
24 10 15
= 13 1 4
--- + --- + --- (amplific cu 4) =
12 10 60
= 65 1 4
--- (amplific cu 5) + --- + --- =
60 10 60
= 69 6 75 25
--- + --- (amplific cu 6) = --- = --- =
60 60 60 20
= 5
---
4
c) 5 3 11 11 1 1 1
--- + --- + --- - --- - --- - --- + --- +
9 2 18 6 3 18 6
3 7
--- + --- =
4 12
= 10 27 11 33 6 1 1
--- + --- + --- - --- - --- - --- + --- +
18 18 18 18 18 18 6
3 7
--- + --- =
4 12
= 8 3 9 7
--- + --- + --- + --- =
18 18 12 12
= 11 16 11 8 11 4
--- + --- = --- + --- = --- + --- =
18 12 18 6 18 3
11 24 35
= --- + --- = ---
18 18 18
