Объяснение:
1) 17/8 - 11/20 = 85/40 - 22/40 = 63/40
2) 63/40 : 5/46 = 63/40 * 46/5 = 63/20 * 23/5 = 1449/100 = 14. 49/100 = 14,49
Объяснение:
1) 17/8 - 11/20 = 85/40 - 22/40 = 63/40
2) 63/40 : 5/46 = 63/40 * 46/5 = 63/20 * 23/5 = 1449/100 = 14. 49/100 = 14,49