Question

6ª) Efetue as multiplicações:

a) (1/4 . 3/5) . 2/7 = b) (2 /5) . (-2/3) =
c) (-3/4) . (+1/5) . (-1/2) = d) (-3/5) . (-2) . (7/5)​

Answer 1

a)

(- 2/3)×(+ 1/5)

-2/3 × 1/5

- 2/15

b)

(- 7/3)×(- 3/7)

21/21

1

c)

(1/5)×(- 7/3)

- 7/15

d)

(- 2/9)×5/7

- 10/63

e)

(- 3/4)×(- 5/7)

+ 15/28

f)

(- 2)×(- 1/6)

2/6 ÷ 2

1/3

g)

5×(- 4/7)

- 20/7

h)

- 2.(- 1/3)

+ 2/3

Bons estudos