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Detección de Errores: Fracciones

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Detección de Errores: Fracciones

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Ejercicios de errores comunes en fracciones

Created by

Mary Barría
Mary Barría
Panama

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Detección de Errores: Fracciones
 

Detección de Errores: FraccionesOnline version

Ejercicios de errores comunes en fracciones

by Mary Barría
1

Operación: 1/3 + 1/3 = 2/6. ¿Qué error se cometió?

2

Operación: 2/5 + 3/4 = 5/9. ¿Qué fallo aparece?

3

Operación: -7/8 - 1/8 = 6/8. ¿Qué error se ve?

4

Operación: 3/7 - 2/7 = 1/5. ¿Qué fallo se nota?

5

Operación: 5/6 + 1/3 = 6/9. ¿Qué error se ve?

6

Operación: 1/4 + 3/8 = 1/2. ¿Qué fallo está?

7

Operación: 2/6 + 1/3 = 4/6. ¿Qué error se ve?

8

Operación: 3/10 - 1/2 = 1/2. ¿Qué fallo aparece?

Explicación

El denominador no se iguala; hay que buscar mínimo común múltiplo.

Se debe hallar el mínimo común múltiplo para sumar fracciones distintas.

El resultado debería ser -8/8 y simplificado sería -1.

Los denominadores iguales no requieren buscar común; la resta es 1/7.

No se debe usar 6/9; la suma correcta es 7/6.

El denominador común correcto es 8; 1/4 se convierte en 2/8, resultado 5/8.

4/6 simplificado da a 2/3.

El resultado correcto es 1/5; se confundió numerador/denominador.

 
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