Question

1/2 x 1/3
2 x 1/3
7/8 (entre) 4/5

Answer 1

-1/2 x 1/3

{1/2}/3

1/6

-2 x 1/3

2 x 1/3

2/3

-7/8 (entre) 4/5

{7/32}/5

7/160