10 5/12
Пошаговое объяснение:
1) 1 2/3 + 2,5 = 1 2/3 + 2 5/10 = 1 2/3 + 2 1/2 = 1 4/6 + 2 3/6 = 3 7/6 = 4 1/6
2) 4 1/3 - 1 5/6 = 4 2/6 - 1 5/6 = 3 8/6 - 1 5/6 = 2 3/6 = 2 1/2
3) 4 1/6 * 2 1/2 = 25/6 * 5/2 = 125/12 = 10 5/12
10 5/12
Пошаговое объяснение:
1) 1 2/3 + 2,5 = 1 2/3 + 2 5/10 = 1 2/3 + 2 1/2 = 1 4/6 + 2 3/6 = 3 7/6 = 4 1/6
2) 4 1/3 - 1 5/6 = 4 2/6 - 1 5/6 = 3 8/6 - 1 5/6 = 2 3/6 = 2 1/2
3) 4 1/6 * 2 1/2 = 25/6 * 5/2 = 125/12 = 10 5/12