Question

5\(\dfrac{1}{2}\) + 3\(\dfrac{2}{5}\) : 1\(\dfrac{4}{5}\) = ?

Answer 1

\(5\dfrac{1}{2}+3\dfrac{2}{5}:1\dfrac{4}{5}=\dfrac{11}{2}+\dfrac{17}{5}:\dfrac{9}{5}=\dfrac{11}{2}+\dfrac{17}{5}\times\dfrac{5}{9}=\dfrac{11}{2}+\dfrac{17}{9}=\dfrac{11\times9+17\times2}{18}=\dfrac{133}{18}\)

Answer 2

` 5 1/2 + 3 2/5 : 1 4/5 `

 

`=11/2 + 17/5 xx 5/9`

 

`= 11/2 +( 17/5 xx 5/9 ) `

 

`=11/2 + 17/9`

 

`= 99/18 + 34/18 = 133/18`

Answer 3

Ai cíu mềnh điiii :((

Answer 4

11/2 + 17/5 + 9/5

=55/10 + 34/10 + 18/10

=101/10

Answer 5

`5 1/2 + 3  2/5 : 1 4/5`

`= 11/2 + 17/5 : 9/5`

`=11/2 + 17/5 xx 5/9`

`= 11/2 + 17/9`

`= 113/18`