1. 6/529
2. 17 19/37
Пошаговое объяснение:
1. 7 2/3 * х = 4/46
х = 4/46 : 23/3 = 4*3 / 46*23 = 12/1058 = 6/529
2. 4 1/9х = 72
37/9 * х = 72
х = 72 : 37/9 = 648/37 = 17 19/37
