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TEST SOBRE FRACCIONES

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TEST SOBRE FRACCIONES

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About this activity

Cuestionario para autoevaluación sobre fracciones.

Created by

Giuliano Caceres
Giuliano Caceres
Argentina

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TEST SOBRE FRACCIONES
 

TEST SOBRE FRACCIONESOnline version

Cuestionario para autoevaluación sobre fracciones.

by Giuliano Caceres
1

¿Qué es un número racional?

2

¿Cuál es una fracción aparente?

3

¿Qué fracción es irreducible?

4

¿Fracción que se puede simplificar?

5

Una amplificación de 3/5 por es:

6

Suma de fracciones: 1/3 + 2/5 =

7

Resta de fracciones: 7/8 - 1/4 =

8

Multiplicación de fracciones: 2/3 × 9/4 =

9

División de fracciones: 5/6 : 2/3 =

10

Conversión mixto a impropio: 2 1/3 =

Explicación

Un racional se obtiene al dividir dos enteros, siempre que el denominador no sea cero.

Una fracción aparente se iguala a un entero, como 4/4 = 1.

7/3 es irreducible porque 7 y 3 no tienen factores comunes salvo 1.

18/24 se reduce a 3/4 dividiendo por 6.

Amplificar multiplicando numerador y denominador por 4 da 12/20.

Al hallar común denominador 15: 5/15 + 6/15 = 11/15.

Convertimos 1/4 a 2/8 y restamos: 7/8 - 2/8 = 5/8.

Multiplica numeradores y denominadores: (2×9)/(3×4)=18/12=3/2.

Dividir por 2/3 equivale a multiplicar por 3/2: (5/6)×(3/2)=15/12=5/4.

2 1/3 = 2 + 1/3 = 6/3 + 1/3 = 7/3.

 
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