Tui cju

\(\frac{5}{12}-\frac{7}{32}:\frac{21}{16}\)

=\(\frac{5}{12}-\frac{7}{32}.\frac{16}{21}\)

=\(\frac{5}{12}-\frac{1}{6}\)

=\(\frac{5}{12}-\frac{2}{12}\)

=\(\frac{1}{4}\)

1. Is that your teacher ?

No this is my teacher

2. Is there many book on the bookshelf?

3. How old is your brother?

-He is one year old

4.This is not my pen. It is her pen

5.What are these?

-They are ink-pot

6.Minh lives with his brother in an apartment in the city

7.Mrs. Lan and her children travel to LonDon by plane

8.My sister has a bike and she cycle to work everyday

9.Where are the dogs?

-They are in the yard

10. Does your brother do his homewwork after dinner in the evening

chu vi là :

 385 / 11 = 35 ( cm )

              đs : 35

18 tuoi ung voi: 

1/4+1/5=9/20(tuoi me) 

Tuoi me la: 

18:9/20=40(tuoi)

ĐS : 40 tuoi.

18 tuoi ung voi: 

1/4+1/5=9/20(tuoi me) 

Tuoi me la: 

18:9/20=40(tuoi)

ĐS : 40 tuoi.

Trừ thú mỏ vịt ra thì thù nào cũng đẽ được

Đáy bé là

36 " 2 - { 10 : 2 } = 31 m

Đáy lớn là 

72 - 31 = 41 m

coi lại cái đề !!!!!

Vậylúc đầu thùng 1 nhiều hơn thùng 2 là:

              8+6=14(lít)

Thùng 1 có số lít là:

          (82+14):2=48(lít)

Thùng 2 có là:

            82 - 48 = 34 (lít)