Question

20 pontos !!

Efetue as multiplicações

a- 4/3 × 1/2 × 2/5
b- 5 × 3/4 × 5/3
c- 1/2 × 3/7 × 1/5
d- 3/2 ×5/8 × 1/4
e- 5/4 × 3 × 4/7
f- 5/2 × 7/2 × 3/8
g- 2 × 1/9 × 4/5

Answer 1

a) (4 x 1 x 2)/(3 x 2 x 5) = 8/30 = 4/15

b) (5 x 3 x 5)/(4 x 3) = 75/12

c) (1 x 3 x 1)/(2 x 7 x 5) = 3/70

d) (3 x 5 x 1)/(2 x 8 x 4) = 15/64

e) (5 x 3 x 4)/(4 x 7) = 60/28 = 15/7

f) (5 x 7 x 3)/(2 x 2 x 8) = 105/32

G) (2 x 1 x 4)/(9 x 5) = 8/45