23/27
Пошаговое объяснение:
1) 3. 3/5 - 1. 7/9 =
3. 27/45 - 1. 35/45 =
2. 72/45 - 1. 35/45 =
1. 37/45
2) 1/2 - 1/3 = 3/6 - 2/6 = 1/6
3) 1. 37/45 * 1/6 = 82/45 * 1/6 = 41/45 * 1/3 = 41/135
4) 52/45 - 41/135 = 156/135 - 41/135 = 115/135 = 23/27
23/27
Пошаговое объяснение:
1) 3. 3/5 - 1. 7/9 =
3. 27/45 - 1. 35/45 =
2. 72/45 - 1. 35/45 =
1. 37/45
2) 1/2 - 1/3 = 3/6 - 2/6 = 1/6
3) 1. 37/45 * 1/6 = 82/45 * 1/6 = 41/45 * 1/3 = 41/135
4) 52/45 - 41/135 = 156/135 - 41/135 = 115/135 = 23/27