Варіант №2
Перевіримо свої знання
1) Скоротіть дроби:12 | ||
-- | = | ------- |
15 |
14 | ||
-- | = | ------- |
21 |
32 | ||
-- | = | ------- |
48 |
35 | ||
-- | = | ------- |
84 |
9 | 4 | |
-- |
| -- |
10 | 5 |
5 | 7 | |
-- |
| -- |
12 | 16 |
4 | 2 | |
-- |
| -- |
7 | 3 |
4 | 2 | |||
-- |
|
-- | = | --- |
7 | 5 |
7 | 5 | |||
-- |
|
-- | = | --- |
12 | 9 |
9 | 3 | |||
-- |
|
-- | = | --- |
16 | 8 |
4 | 1 | ||||||
3 | -- |
|
2 | -- | = | --- | |
9 | 6 |
3 | 2 | ||||||
2 | -- |
|
3 | -- | = | --- | |
4 | 5 |
14 | ||||||
5 |
|
3 | -- | = |
|
--- |
17 |
1 | ||
3 | --- | год, |
6 |
1 | ||
1 | --- | год |
3 |
9 | 5 | |||||
8 | --- | - | x | = | 4 | --- |
10 | 6 |
| |||
X= |
| --- | |
|
9 | 3 | 23 | ||||||
--- | + | ( | x | - | -- | ) | = | --- |
14 | 7 | 28 |
| |
X= | --- |
|
3 |
-- |
8 |
5 |
-- |
12 |
| |
X= | --- |
|
X | 31 | |
--- | < | --- |
8 | 48 |