Question

 

8/9 : 2 + 10/9 : 2

 

Answer 1

=1 nha

Answer 2

1

Answer 3

\(\dfrac{8}{9}\times\dfrac{1}{2}+\dfrac{10}{9}\times\dfrac{1}{2}=\dfrac{1}{2}\left(\dfrac{8}{9}+\dfrac{10}{9}\right)=\dfrac{1}{2}\times\dfrac{18}{9}=\dfrac{1}{2}\times2=1\)

Answer 4

(8/9+10/9) : 2 = 
2: 2 = 1