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lozanna [386]
1 year ago
9

¡Resolverlo puede ser que sería difícil pero necesito si en español!

Spanish
1 answer:
Damm [24]1 year ago
6 0

Answer:

Todas las respuestas están resaltadas en negritas.

Explanation:

4/7 + 8/12 + 3 1/9

Particularmente:

3 1/9 = 3 + 1/9 = 27/9 + 1/9 = 28/9

Para poder sumar más fácilmente  estas fracciones se recomienda que los denominadores sean iguales utilizando fracciones equivalentes, es decir, que tengan el mismo valor, lo cual se logra de la siguiente forma:

Sabemos que todo número multiplicado por 1 nos da como resultado el mismo número:

1*(4/7) = 4/7

También sabemos que todo número dividido entre si mismo da como resultado 1:

36/36 = 1

Entonces:

1*(4/7) = (36/36)(4/7) = (36*4)/(36*7) = 144/252

4/7 es equivalente a 144/252

En el mismo sentido:

8/12 es equivalente a 168/252

3 1/9 es equivalente a 784/252

Por tanto:

4/7 + 8/12 + 3 1/9 = 144/252 + 168/252 + 784/252 = 1096/252

= 1008/252 + 88/252 = 4 + 88/252 = 4 + 22/63

= 4 22/63

Mínima expresión de 128/32

128/32 = 64/16 = 32/8 = 16/4 = 8/2 = 4/1 =4

= 4

De mayor a menor:

9/2, 12/5, 7/4

2x + 6 = 5x - 24

2x - 5x = -24 - 6

-3x = -30

x = -30/-3

x = 10

Comprobación::

2*10 + 6 = 5*10 - 24

20 + 6 = 50 - 24 = 26

Respuesta:

x = 10

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