Question

Tính nhanh

4/9 + 1/5 + 9/11 + 4/5 + 5/9 + 2/11 GIÚP MINK VỚI

Answer 1

=(4/9+5/9)+(1/5+4/5)+(9/11+2/11)

=1+1+1

=3

Answer 2

4/9 + 1/5 + 9/11 + 4/5 + 5/9 + 2/11 

= ( 4/9 + 5/9) + ( 1/5 + 4/5) + ( 9/11 + 2/11)

= 1 + 1 + 1

= 3

Answer 3

 

=(4/9+5/9)+(1/5+4/5)+(2/11+9/11)

=1+1+1

=3

Answer 4

`=(4/9+5/9)+(1/5+4/5)+(9/11+2/11)`

`=1+1+1`

`=3`

Answer 5

`4/9 + 1/5 + 9/11 + 4/5 + 5/9 + 2/11 `

`= ( 4/9 + 5/9) + ( 1/5 + 4/5) + ( 9/11 + 2/11)`

`= 1 + 1 + 1`

`= 3`

Answer 6

= (4/9+5/9)+(1/5+4/5)+(9/11+2/11)

= 1+ 1 + 1

= 3

Answer 7

4/9 + 1/5 + 9/11 + 4/5 + 5/9 + 2/11

=(4/9+5/9)+(1/5+4/5)+(9/11+2/11)

=1+1+1

=3