1) 2
2) 6 2/3
Пошаговое объяснение:
1) (1/12 + 1/6) : (3/8 - 1/4) = (1/12 + 2/12) : (3/8 - 2/8) = 3/12 : 1/8 = 3/12 * 8/1 = 2/1 = 2
2) (1 - 4/9) : (1/3 - 1/4)= (9/9 - 4/9) : (4/12 - 3/12) = 5/9 : 1/12 = 5/9 * 12/1 = 20/3 = 6 2/3
1) 2
2) 6 2/3
Пошаговое объяснение:
1) (1/12 + 1/6) : (3/8 - 1/4) = (1/12 + 2/12) : (3/8 - 2/8) = 3/12 : 1/8 = 3/12 * 8/1 = 2/1 = 2
2) (1 - 4/9) : (1/3 - 1/4)= (9/9 - 4/9) : (4/12 - 3/12) = 5/9 : 1/12 = 5/9 * 12/1 = 20/3 = 6 2/3