Question

Rút gọn các phân số sau: 

45/135

117/234

1515/2727

232323/494949

Answer 1

`= 1/3`

`= 1/2`

`= 5/9`

`= 23/49`.

Answer 2

1/3
1/2
5/9
23/49

Answer 3

\(\dfrac{45}{135}=\dfrac{1}{3};\dfrac{117}{234}=\dfrac{3}{2};\dfrac{1515}{2727}=\dfrac{5}{9};\dfrac{232323}{494949}=\dfrac{23}{49}\)

Answer 4

1/3

1/2

5/9

23/49

Answer 5

1/3

1/2

1

1

Answer 6

1/3

1/2

5/9

23/49

Answer 7

`45/135=[45:45]/[135:45]=1/3`

`117/234=[117:117]/[234:117]=1/2`

`1515/2727=[1515:303]/[2727:303]=5/9`

`232323/494949=[232323:10101]/[494949:10101]=23/49`

Answer 8

\(\dfrac{45}{135}=\dfrac{45:45}{135:45}=\dfrac{1}{3}\)

 

\(\dfrac{117}{234}=\dfrac{117:117}{234:117}=\dfrac{1}{2}\)

 

\(\dfrac{1515}{2727}=\dfrac{1515:303}{2727:303}=\dfrac{5}{9}\)

 

\(\dfrac{232323}{494949}=\dfrac{232323:10101}{494949:10101}=\dfrac{23}{49}\)

Answer 9

Answer 10

1/3
1/2
5/9
23/49