guivalino1

Verified answer

Resposta:

Explicação passo a passo:

-5/9 = -5/9

-2/-3=+2/3=2/3

3/4=3/4

-9/5=-9/5

7/-5=-7/5

-8/7=-8/7

-2/3=-2/3

6/-7=-6/7

+4/3=4/3

-3/7 = -3/7

8/-9=-8/9

-10/-21=+10/21=10/21