Question

Помогите
Приведите дробь к знаменателю 42

1) 4/7. 2) 5/6. 3) 20/21

Answer 1

1) 24/42
2) 35/42
3) 40/42

Answer 2

4/7 = (4 * 6) / (7 * 6) = 24/42
5/6 = (5 * 7) / (6 * 7) = 35/42
20/21 = (20 * 2) / (21 * 2) = 40/42