C

nét mực

Lê Sơ

Câu a bổ sung thêm \(\dfrac{99}{100}\) nhé bạn :))

a, \(\dfrac{5}{3}và.\dfrac{29}{14}\)

b, \(\dfrac{9}{21};\dfrac{33}{77};\dfrac{45}{105}\)

A new car was bought my Mr.Pike yesterday 

Sửa lại tí nha bạn:

my => by

English are learned by Tam everyday

A new car was bought my Mr.Pike yesterday 

A book is being read by Tam now

Tea can't be made with cold water

All the workers of the plant were being instructed by the chief engineer

Tham khảo lý thuyết nhé bạn!!

Muốn cộng hai phân số không cùng mẫu, ta viết dưới dạng hai phân số có cùng một mẫu rồi cộng các tử và giữ nguyên mẫu chung.