Question

Tính nhanh 

1/3 + 3/4 +  2/3 + 1/4

 

Answer 1

`1/3 + 3/4 + 2/3 + 1/4`

`=(1/3 +2/3)+(3/4+1/4)`

`= 3/3 + 4/4`

`=1+1`

=2`

Answer 2

`1/3+3/4+2/3+1/4`

`=(1/3+2/3)+(3/4+1/4)`

`=3/3+4/4`

`=1+1`

`=2`

Answer 3

`1/3 + 3/4 +  2/3 + 1/4`

 

` = (1/3 + 2/3 ) + ( 3/4 + 1/4 ) `

 

`= 3/3 + 4/4`

 

`= 1 + 1 = 2`

Answer 4

2