Помогите пожалуйста.
1) х = 12 ( 12/25 = 12/25 ) 2) х = 12 ( 9/24 = 3/8. 12/32 = 3/8 ) 3) х = 36 ( 18/36 = 1/2. 8/16 = 1/2) 4) х = 33 ( 14/21 = 2/3. 22/33 = 2/3)