ответ:1)11/8,2)5/4,3)7/8,4)11/9
1. 1 3/8
2. 1 1/4
3. 7/8
4. 1 2/9
Пошаговое объяснение:
1. 3/4+5/8 = (3*2+5)/8 = 11/8 = 1 3/8
2. 7/12+2/3 = (7+2*4)/12 = 15/12 = 5/4 = 1 1/4
3. 5/6+1/24 = (5*4+1)/24 = 21/24 = 7/8
4. 5/9+2/3 = (5+2*3)/9 = 11/9 = 1 2/9
