Question

Resolva as frações

a) 2/8+5/6+7/2 =

b) 1/4+3/3+5/6 =

c) 1/7+2/6+1/3 =

d) 1/2+2/8+4/10 =

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Answer 1

Resposta:

Resposta!

Explicação passo-a-passo:

a )

$\frac{2}{8} + \frac{5}{6} + \frac{7}{2} = \frac{ 14}{12}$

MMC :

8,6,2 - 2

4,3,1 - 2

2,3,1 - 2

1,3,1 - 3

1,3,1

$2 \times 2 \times2 \times 3 = 12$

b)

$\frac{1}{4} + \frac{3}{3} + \frac{5}{6} = \frac{9}{12}$

MMC :

4,3,6 - 2

2,3,3 - 2

1,3,3 - 3

1,1,1

$2 \times 2 \times 3 = 12$

c)

$\frac{1}{7} + \frac{2}{6} + \frac{1}{3} = \frac{4}{42}$

MMC :

7,6,3 - 2

7,3,3 - 3

7,1,1 - 7

1,1,1

$2 \times 3 \times 7 = 42$

d )

$\frac{1}{2} + \frac{2}{8} + \frac{4}{10} = \frac{7}{40}$

MMC :

2,8,10 - 2

1,4,5 - 2

1,2,5 - 2

1,1,5 - 5

1,1,1

$2 \times 2 \times 2 \times 5 = 40$