1) 23/3х = 9/46
Х = 27/1058
2) х : 61/20 = 9,4
х × 20/61 = 9,4
20/61 х = 9,4
х = 61/20 × 47/5
х = 2867/100
3) 27 7/12 : х = 3,31 , х≠0
331/12 × 1/х = 3,31
331/12х = 3,31
331 = 39,72 х
39,72 х = 331
х = 25/3 , х≠0
х = 25/3
