Question

simplifique as frações abaixo:
a)3/6
b)36/24
c)8/16
d)63/81
e)90/120.
(9)encontre os resultados dos cálculos abaixo :
a)7/5 -- 3/5.
b)4/8+2/8.
c)3/4+5/12.
d)3/10 - 1/12.
(10) efetue as multiplicacoes abaixo e simplifique quando possível :
a)3 ×2/5
b) 1/3×4/7
c)9/8×4/45.
d )3/5×5/9.
e)3/7×21/10​

Answer 1

Resposta:

Explicação passo-a-passo:

a) 3/6 => 1/2

b) 36/24 => 3/2

c) 8/16 => 1/2

d) 63/81 => 7/9

e) 90/120 => 3/4

9)

a) 7/5 - 3/5 = 4/5

b) 4/8 + 2/8 = 6/8 = 3/4

c) 3/4 + 5/12 = (3.3 + 5)/12 = 14/12 = 7/6

d) 3/10 - 1/12 = (6.3 - 5.1)/60 = (18 - 5)/60 = 13/60

10)

a) 3 x 2/5 = 6/5

b) 1/3 x 4/7 = 4/21

c) 9/8 x 4/45 = 9.4/8.45 = 1/2.1/5 = 1/10

d) 3/7 x 21/10 = 3.21/7.10 = 3.3/1.10 = 9/10

Answer 2

Resposta:

1-

A)1/2 B)3/2 C)1/2 D)7/9 E)3/4

2-

A)4/5 B)3/4 C)14/12 D)13/60

3-

A)6/5 B)4/21 C)1/10 D)1/3 E)63/70