2) 10
3) 2 1/3
Пошаговое объяснение:
2) 80/81 : 40/63 * 27/28 : 3/20
1. 80/81 : 40/63 = 80/81 * 63/40 = 14/9
2. 14/9 * 27/28 = 3/2
3. 3/2 : 3/20 = 3/2 * 20/3 = 10/1 = 10
4) 24/37 : 27/74 : 32/45 * 14/15
1. 24/37 : 27/74 = 24/37 * 74/27 = 16/9
2. 16/9 : 32/45 = 16/9 * 45/32 = 5/2
3. 5/2 * 14/15 = 7/3 = 2 1/3
2) 10
3) 2 1/3
Пошаговое объяснение:
2) 80/81 : 40/63 * 27/28 : 3/20
1. 80/81 : 40/63 = 80/81 * 63/40 = 14/9
2. 14/9 * 27/28 = 3/2
3. 3/2 : 3/20 = 3/2 * 20/3 = 10/1 = 10
4) 24/37 : 27/74 : 32/45 * 14/15
1. 24/37 : 27/74 = 24/37 * 74/27 = 16/9
2. 16/9 : 32/45 = 16/9 * 45/32 = 5/2
3. 5/2 * 14/15 = 7/3 = 2 1/3