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9 tháng 7 2023

Cô sẽ hướng dẫn em cách để em có thể quy đồng nhanh nhất:

Bước 1: rút gọn phân số: \(\dfrac{mẫu_1}{mẫu_2}\) 

Bước 2: nhân cả tử và mẫu số của phân số thứ nhất với mẫu sô của phân số sau khi đã rút gọn. Nhân cả tử và mẫu số của phân số thứ hai với tử số của phân số sau khi đã rút gọn.

Giải ta có: \(\dfrac{15}{72}\) =  \(\dfrac{5}{24}\)

\(\dfrac{4}{15}\) = \(\dfrac{4\times24}{15\times24}\) = \(\dfrac{96}{360}\)

\(\dfrac{5}{72}\) = \(\dfrac{5\times5}{72\times5}\) = \(\dfrac{25}{360}\)

 

Old man:  Can you please do me a favor?   Ba: ...............       A. Yes. Please help me                                       B. Sure. How can I help you?       C. Yes, you can                                                     D. No, you can't Câu 7. The children can look after ............................... for a few days.       A. them                           B. they                          C. themself                   D. themselves Câu 8. My grandfather used ____________ us to the...
Đọc tiếp

Old man:  Can you please do me a favor?   Ba: ...............

       A. Yes. Please help me                                       B. Sure. How can I help you?

       C. Yes, you can                                                     D. No, you can't

 Câu 7. The children can look after ............................... for a few days.

       A. them                           B. they                          C. themself                   D. themselves

 Câu 8. My grandfather used ____________ us to the zoo when he was alive.

       A. took                             B. to take                     C. taking                       D. take

 Câu 9. Choose the underlined word or phrase in each sentence  that  needs correcting.

         The armchair is in the living-room among the television and the sofa.

                       A        B                                        C                                 D

Câu 10. My hometown is getting more modern and .....................

       A. more noisy                B. noisier                     C. noisiest                     D. more noisier

 Câu 11. The water wasn't ____________ in.

       A. clear enough for swimming                         B. enough clear for swimming

       C. enough clear to swim                                    D. clear enough to swim

 Câu 12. Choose the word that has the underlined part pronounces  differently

       A. looked                        B. phoned                   C. missed                      D. watched

 Câu 13. Don't come in. Pleased wait ____________ for your turn.  

       A. outside                       B. inside                       C. downstairs              D. upstairs

 Câu 14. We must be there....................7.30 and 10.30.

       A. between                     B. at                              C. after                          D. before

 Câu 15. His father is very proud  ________  him.

       A. on                                B. about                       C. of                               D. with

 Câu 16. They …………….. in that house for 3 years.

       A. have lived                  B. live                            C. lived                          D. are living   

 Câu 17. Choose the word that has a different stress pattern from the others.

       A. plentiful                      B. generous                C. volunteer                 D. sociable

1
18 tháng 12 2021

Old man:  Can you please do me a favor?   Ba: ...............

       A. Yes. Please help me                                       B. Sure. How can I help you?

       C. Yes, you can                                                     D. No, you can't

 Câu 7. The children can look after ............................... for a few days.

       A. them                           B. they                          C. themself                   D. themselves

 Câu 8. My grandfather used ____________ us to the zoo when he was alive.

       A. took                             B. to take                     C. taking                       D. take

 Câu 9. Choose the underlined word or phrase in each sentence  that  needs correcting.

         The armchair is in the living-room among the television and the sofa.

                       A        B                                        C                                 D

Câu 10. My hometown is getting more modern and .....................

       A. more noisy                B. noisier                     C. noisiest                     D. more noisier

 Câu 11. The water wasn't ____________ in.

       A. clear enough for swimming                         B. enough clear for swimming

       C. enough clear to swim                                    D. clear enough to swim

 Câu 12. Choose the word that has the underlined part pronounces  differently

       A. looked                        B. phoned                   C. missed                      D. watched

 Câu 13. Don't come in. Pleased wait ____________ for your turn.  

       A. outside                       B. inside                       C. downstairs              D. upstairs

 Câu 14. We must be there....................7.30 and 10.30.

       A. between                     B. at                              C. after                          D. before

 Câu 15. His father is very proud  ________  him.

       A. on                                B. about                       C. of                               D. with

 Câu 16. They …………….. in that house for 3 years.

       A. have lived                  B. live                            C. lived                          D. are living   

 Câu 17. Choose the word that has a different stress pattern from the others.

 

       A. plentiful                      B. generous                C. volunteer                 D. sociable

26 tháng 10 2018

Đáp án: A

13 tháng 11 2017

Đáp án: A

21 tháng 12 2017

Health is an essential part of life. Health helps us to live happily, optimally love life more, help us to overcome the difficulties to overcome difficulties to strive to eat. Nutrition is full of four basic food groups, limited to eating things that are not good for health. Spinning is also an important thing to help you grow in all aspects not only for health. One day and apply many measures to raise the body up. So health is a significant thing in our lives!

Tick for me!

28 tháng 3 2022

ok man

28 tháng 3 2022

Người nước ngoài à ??

31 tháng 10 2016

Yes, I can

31 tháng 10 2016

Ahi có!!!

27 tháng 2 2017

Đáp án là A.

2 tháng 4 2018

Đáp án là A.

9 tháng 12 2019

Kiến thức: Câu điều kiện loại 1

Giải thích:

Cấu trúc: If + S + V(s,es), S + will + V

Đảo ngữ: Should + S + Vo, S + will + V

Ở mệnh đề chính có thể sử dụng câu mệnh lệnh: Do/ Don’t do something …

Tạm dịch: “Tôi nghĩ tôi có thể tự mình tìm thông tin.” – “Nếu bạn cần sự giúp đỡ, hãy gọi cho tôi.”

Chọn A

1 tháng 3 2022

I couldn't know how to do if you wasn't here