Question

6) Efetue as multiplicações:
a) (-2/3).(+1/5) =
b) (-7/3).(-3/7) =
c) (1/5).(-7/3) =
d) (-2/9).5/7 =
e) (-3/4).(-5/7) =
f) (-2).(-1/6) =
g)5.(-4/7) =
h) -2.(-1/3) =​

Answer 1

Olá...

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

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