8. 1/4
Пошаговое объяснение:
1) 1. 5/9 : 7/4 = 14/9 : 7/4 =
14/9 * 4/7 = 2/9 * 4/1 = 8/9
2) 7 - 8/9 = 6. 9/9 - 8/9 =
6. 1/9
3) 6. 1/9 * 1. 7/20 =
55/9 * 27/20 = 11/1 * 3/4 =
33/4 = 8. 1/4
8. 1/4
Пошаговое объяснение:
1) 1. 5/9 : 7/4 = 14/9 : 7/4 =
14/9 * 4/7 = 2/9 * 4/1 = 8/9
2) 7 - 8/9 = 6. 9/9 - 8/9 =
6. 1/9
3) 6. 1/9 * 1. 7/20 =
55/9 * 27/20 = 11/1 * 3/4 =
33/4 = 8. 1/4