ответ:2 11/12
Пошаговое объяснение: удачи в учёбе!
4 5/12-1 1/2:(2 1/6+8/15)*1 4/5 = 2 11/12
1) 2 1/6⁽⁵+8/15⁽² = 2 5/30 + 16/30 = 2 21/30 = 2 7/10
2) 1 1/2:2 7/10 = 3/2 * 10/27 = 5/9
3) 5/6 *1 4/5 = 5/6 * 9/5 = 3/2
4) 4 5/12-1 1/2⁽⁶=4 5/12 - 1 6/12 = 2 11/12
4 5/12 - 1 1/2 : (2 1/6 + 8/15) · 1 4/5 = 3 5/12
1) 2 1/6 + 8/15 = 2 5/30 + 16/30 = 2 21/30 = 2 7/10
2) 1 1/2 : 2 7/10 = 3/2 : 27/10 = 3/2 · 10/27 = (1·5)/(1·9) = 5/9
3) 5/9 · 1 4/5 = 5/9 · 9/5 = 45/45 = 1
4) 4 5/12 - 1 = 3 5/12
ответ: 3 целых 5/12.
ответ:2 11/12
Пошаговое объяснение: удачи в учёбе!
4 5/12-1 1/2:(2 1/6+8/15)*1 4/5 = 2 11/12
1) 2 1/6⁽⁵+8/15⁽² = 2 5/30 + 16/30 = 2 21/30 = 2 7/10
2) 1 1/2:2 7/10 = 3/2 * 10/27 = 5/9
3) 5/6 *1 4/5 = 5/6 * 9/5 = 3/2
4) 4 5/12-1 1/2⁽⁶=4 5/12 - 1 6/12 = 2 11/12
4 5/12 - 1 1/2 : (2 1/6 + 8/15) · 1 4/5 = 3 5/12
1) 2 1/6 + 8/15 = 2 5/30 + 16/30 = 2 21/30 = 2 7/10
2) 1 1/2 : 2 7/10 = 3/2 : 27/10 = 3/2 · 10/27 = (1·5)/(1·9) = 5/9
3) 5/9 · 1 4/5 = 5/9 · 9/5 = 45/45 = 1
4) 4 5/12 - 1 = 3 5/12
ответ: 3 целых 5/12.