1. 1/7
2. 5/17
Пошаговое объяснение:
1. 3/8×2/15:7/20 = 1/7
3/8 * 2/15 = 1/20
1/20 : 7/20 = 1/20 * 20/7 = 1/7
2. 4/9:8/9×10/17 = 5/17
4/9 : 8/9 = 4/9 * 9/8 = 1/2
1/2 * 10/17 = 5/17
1. 1/7
2. 5/17
Пошаговое объяснение:
1. 3/8×2/15:7/20 = 1/7
3/8 * 2/15 = 1/20
1/20 : 7/20 = 1/20 * 20/7 = 1/7
2. 4/9:8/9×10/17 = 5/17
4/9 : 8/9 = 4/9 * 9/8 = 1/2
1/2 * 10/17 = 5/17