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Repaso de n.ºs racionales (Cuestionario)

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Repaso de n.ºs racionales (Cuestionario)

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Operaciones y propiedades

Created by

Veronica Mercedes Bolaños Mendoza
Veronica Mercedes Bolaños Mendoza
Ecuador

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Repaso de n.ºs racionales (Cuestionario)
 

Repaso de n.ºs racionales (Cuestionario)Online version

Operaciones y propiedades

by Veronica Mercedes Bolaños Mendoza
1

Cuál es la suma de 3/4 y 1/6?

2

Simplifica la fracción 18/24.

3

Multiplica 2/5 por 3/7.

4

Divide 7/8 entre 2/3.

5

¿Qué propiedad se usa para sumar fracciones con denominadores diferentes?

6

¿cuánto es 1/2 + 1/3?

7

Convierte 2 1/3 a fracción impropia.

8

Si a/b = c/d, ¿qué dice la propiedad de equivalencia?

9

Restar 5/6 − 1/3.

10

Expresar 0.75 como fracción.

Explicación

La suma se hace con denominadores comunes: 3/4 = 9/12 y 1/6 = 2/12.

Dividir numerator y denominador por 6 da 3/4.

Numeradores multiplican y denominadores multiplican.

Multiplica por el recíproco: 7/8 × 3/2 = 21/16.

Se busca denominador común para poder sumar.

Convertir a denominador 6: 3/6 + 2/6 = 5/6.

2 1/3 = 2 + 1/3 = 7/3.

Fracciones equivalentes representan el mismo valor.

1/3 equivale a 2/6; 5/6−2/6 = 3/6 = 1/2.

0.75 = 75/100 = 3/4 simplificado.

 
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