Question

F)
$100 \sqrt{49}$
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Answer 1

Resposta:

Explicação passo a passo:

A)

= -5/6+3/4

6,4: 2

3,2:2

3,1:3

1,1

= 2.2.3

=4.3

=12

Mmc (6,4)= 12

= [2.(-5) + 3.3]/12

= (-10+9)/12

= - 1/12

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B)

= 2/3 + 5/6 - 1/2

Mmc (3,6,2)= 6

3,6,2: 2

3,3,1:3

1,1,1

=2.3

=6

= (2.2+1.5 - 3.1)/6

= (4+5-3)/6

= 6/6

= 1

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C)

= 1/3 . (- 4/7)

= - 4/21

__________

D)

10/3:8/9

= 10/3 . 9/8

= 9/3 . 10/8 (:2)/(:2)

= 3 . 5/4

= 15/4

___________

E) (-2/3)^2

= (-2/3).(-2/3)

= +4/9

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