какая дробь из двух дробей с одинаковыми знаменателями больше?

на трех полках 60 книг 1+2полка=37книг,а2+3полка=42книги сколько на второй полке?

Помогите пожалуйста с заданием по английскому

Don't agree with the statements given below using I'm afraid. Do the exercise in pairs.

Example: I think tins suit is cheap. — I'm afraid you are wrong. It is very expensive.

1) I think his answer is correct.

2) I think you have meals two times a day.

3) I think the weather will be fine tomorrow.

4) I think this film is new.

5) I think your sister is hungry.

6) I think we can buy here a nice dress.

7) I think Andrew is at home.

8) I think Bill likes to play chess.

9) I think he has a sister.

  У двох однакових мішках зерна на 4ц 20кг менше, ніж у семи таких самих мішках.Скільки всього зерна у цих мішках?