10/21×7/15 9/22×11/18 5/7×7 2/11×5 5/6 Решите плиз

Question

10/21×7/15 9/22×11/18 5/7×7 2/11×5 5/6 Решите плиз

Answer 1

1-2/9
2-1/2
3-10/11
Эвот решения данных премеров

Answer 2

1. 0.47×0.46=0.216
2. 0.4×0.6=0.24
3. 0.7×7=5
4. 0.18×5=0.9
5. 5÷6=0.8