Question

Resolva as operações abaixo :

a) ( - 4/10 ) : ( 1/3 ) b) ( 7/5 ) . ( - 2/6 )

c) ( - 8/5 ) . (- 2/5) d) ( 3/5) : ( 1/2 )

Answer 1

Explicação passo-a-passo:

a) ( - 4/10 ) : ( 1/3 ) =

- 4/10 . 3 / 1 =

- 4 / 10 . 3 =

- 12 / 10 = ( simplificando por 2 ).

- 6 / 5

b) ( 7/5 ) . ( - 2/6 ) =

7 / 5 × -2 / 6 =

- 14 / 30 = ( simplificando por 2 ).

- 7 / 15

c) ( - 8/5 ) . (- 2/5) =

- 8 / 5 × - 2 / 5 =

+ 16 / 25 =

16 / 25

d) ( 3/5) : ( 1/2 ) =

3 / 5 × 2 / 1 =

3 / 5 × 2 =

6 / 5