Exe 4 : Make questions for the underlined parts  in following sentences

1.He brushes his teeth three times a day

2.She has a common cold.

3.She eats two bowls of rice every day

4.I can walk to the museum because it's next to my school

5.It will be cool and cloudy tomorrow

Find and correct the mistake in each sentence

1.He should takes some medicines and relax.

2.Ana have a stomach ache so she is at home

3.Why don't we going and see her after school?

4.He usually brush his teeth twice a day

5.He can't speak loudly because he has an sore throat.

6.Where didn't you go to school yesterday?

1/2 2/5 và 4/7 quy đồng mẫu só

Rút gọn phân số 

-24/42,-24/36,-8/56,29/-87,51/-18

Cho đẳng thức 3.(-14)=-7.6,36.2=9.8.Hãy rút ra tất phân số bằng nhau