Помогите пожалуйста с заданиями)) 6 класс

Для числового выражения ответьте на вопросы:
1.Каков наименьший общий знаменатель дробей?
2.Каков дополнительный множитель для первой дроби?
3.Каков дополнительный множитель для второй дроби?
4.Каково значение разности?

Put the verbs into the correct passive form.

1 I've collected all the documents that (need) for the house sale. Can you take them to the lawyer's office (sign)?

2 Look, this is a secret. Come into the garden where we (not / overhear).

3  If you hadn't been so late for work, you (not / sack).

4  This office is very inefficient. The phone (never / answer) promptly, no proper records (keep), and, worst of all, no reports (written) since I started work here.

5 I was so worried about my garden while I was in hospital, but I have very good neighbours. When I got home, I could see that the vegetables (water) every day and the grass (cut) regularly.

6 Can you come to the police station? The man who (suspect) of stealing your wallet (arrest) and (question) at the moment. The police hope he (identify), either by you or another witness.

7 We had hoped to see several famous paintings, but the gallery (reorganised) at the time of our visit and most of the really valuable works (move) for safe keeping.