How often does dad cook ?

How rarely is the cat outside

1 Tính:

1) \(\frac{2}{5}\)\(+\)\(\frac{7}{3}\)

\(=\)\(\frac{6}{15}\)\(+\)\(\frac{35}{15}\)

\(=\)\(\frac{41}{15}\)

2) \(\frac{6}{5}\)\(-\)\(\frac{2}{3}\)

\(=\)\(\frac{18}{15}\)\(-\)\(\frac{10}{15}\)

\(=\)\(\frac{8}{15}\)

c) \(\frac{7}{12}\)\(+\)\(\frac{4}{15}\)

\(=\)\(\frac{35}{60}\)\(+\)\(\frac{16}{60}\)

\(=\)\(\frac{51}{60}\)

\(=\)\(\frac{17}{30}\)

d) \(\frac{3}{8}\)\(+\)\(\frac{1}{12}\)

\(=\)\(\frac{9}{24}\)\(+\)\(\frac{2}{24}\)

\(=\)\(\frac{11}{24}\)

2 Tính

1) \(\frac{2}{5}\)\(-\)\(\frac{1}{10}\)\(+\)\(\frac{1}{2}\)

\(=\)\(\frac{4}{10}\)\(-\)\(\frac{1}{10}\)\(+\)\(\frac{5}{10}\)

\(=\)\(\frac{3}{10}\)\(+\)\(\frac{5}{10}\)

\(=\)\(\frac{8}{10}\)

2) \(3-\frac{1}{4}\)\(+\frac{1}{6}\)

\(=\)\(\frac{36}{12}\)\(-\frac{3}{12}\)\(+\frac{2}{12}\)

\(=\)\(\frac{33}{12}\)\(+\frac{2}{12}\)

\(=\)\(\frac{35}{12}\)

3) \(4\)\(-\)\(\frac{2}{5}\)\(+\)\(\frac{3}{2}\)

\(=\)\(\frac{40}{10}\)\(-\)\(\frac{4}{10}\)\(+\)\(\frac{15}{10}\)

\(=\)\(\frac{36}{10}\)\(+\)\(\frac{15}{10}\)

\(=\)\(\frac{51}{10}\)

4) \(\frac{30}{45}\)\(+\)\(\frac{10}{70}\)\(-\)\(\frac{15}{30}\)

\(=\)\(\frac{2}{3}\)\(+\)\(\frac{1}{7}\)\(-\)\(\frac{1}{2}\)

\(=\)\(\frac{28}{42}\)\(+\)\(\frac{6}{42}\)\(-\)\(\frac{21}{42}\)

\(=\)\(\frac{34}{42}\)\(-\)\(\frac{21}{42}\)

\(=\)\(\frac{13}{42}\)

1.She is always late

2.He is never there

3.They often study in the library

4.He usually studies in the evening

1. She is always late.

2. He is never there.

3. They often study in the library.

4. He usually studies in the evening.

- Hok t -

1.The last time she wrote letters to her pen pal 2 years ago

2.You needn't to bring your umbrella because the weather is fine

ukm chịu

trả lời : là " bóc lột quá mức" 

~ HỌC TỐT~

nghĩa là sao bạn

Phuong works more efficiently if she's pressed for time

=> The Less time makes Phuong not work efficiently.

- Đúng ko bn - ??? 

- Hok T - 

dịch:

Quần áo và phụ kiện.

HT

Quần áo phụ kiện nha

Học tốt ~