how to simplify a ratio

6:38

18:20

11:00

4:28

5:01

17:45

2:52

3:08

7:04

2:19

8:00

1:38

1:07

4:57

5:52

2:15

9:20

10:03

22:43

2:34

2:37

11:19

6:43

3:54

کوتاه

42:59

6:27

6:03

8:42

4:01

10:24

13:04

2:09

2:00

9:13

کوتاه

10:04

15:06

24:36

9:37