7
Пошаговое объяснение:
1) 2 3/4 : 1,1 = 11/4 * 10/11 = 5/2
2) 5/2 + 3 1/3 = 15/6 + 3 2/6 = 5 5/6
3) 0,4 * 3 1/3 = 4/10 * 10/3 = 4/3
4) 2,5 - 4/3 = 25/10 - 4/3 = 75/30 - 40/30 = 7/6
5) 5 5/6 : 7/6 = 35/6 * 6/7 = 5
6) 5 : 5/7 = 5 * 7/5 = 7
7
Пошаговое объяснение:
1) 2 3/4 : 1,1 = 11/4 * 10/11 = 5/2
2) 5/2 + 3 1/3 = 15/6 + 3 2/6 = 5 5/6
3) 0,4 * 3 1/3 = 4/10 * 10/3 = 4/3
4) 2,5 - 4/3 = 25/10 - 4/3 = 75/30 - 40/30 = 7/6
5) 5 5/6 : 7/6 = 35/6 * 6/7 = 5
6) 5 : 5/7 = 5 * 7/5 = 7