Question

07) Efetuar as multiplicações:
a) 4/5.15/8
b) 12.5/24
C) 1/2. 2/3.3/4. 4/5
d) (-1/2).(-3/5). (15/9)
e) (1 – 2/3). (1 + 1/2)​

Answer 1

a) 4/5.15/8

4.15/5.8

60/40

6/4

b) 12.5/24

12.5/24

60/24

5/2

c) 1/2. 2/3.3/4. 4/5

1.2.3.4/2.3.4.5

24/120

2/10

d) (-1/2).(-3/5). (15/9)

3.15/2.5.9

45/90

1/2

e) (1 – 2/3). (1 + 1/2)​

(3-2/3).(2+1/2)

(-1/3).(3/2)

-3/6

-1/3