Question

(1/2 . 19/7) + (2/4 - 1/6) =
a) -19/7
b) 57/14
c) -9/14
d) 19/42
e) 71/42

Answer 1

Resposta:

Explicação passo a passo:

(1/2 . 19/7) + (2/4 - 1/6)

19/14 + (2 * 6 - 1 * 4)/6 * 4

19/14 + (12 - 4)/24

19/14 + 8/24

19/14 * 24/8

456/112 = 57/14

Answer 2

Resposta:

Explicação passo a passo:

= (1/2 . 19/7) + (2/4 - 1/6)

= 19/14 + 1/2 - 1/6

= (3.19+21.1 - 7)/42

= (57+21-7)/42

= (57+14)/42

= 71/42

Mmc (14,2,6)= 42

14,2,6: 2

7, 1, 3: 3

7, 1, 1: 7

1,1,1

= 2.3.7

= 42

R.:

e) 71/42