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Racionales: Multiplicación y División

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Racionales: Multiplicación y División

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Quiz sobre multiplicación y división de numeros racionales

Created by

Leonardo Fernandez
Leonardo Fernandez
Colombia

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Racionales: Multiplicación y División
 

Racionales: Multiplicación y DivisiónOnline version

Quiz sobre multiplicación y división de numeros racionales

by Leonardo Fernandez
1

1) (3/4) × (-2/5) = ?

2

2) (-7/3) ÷ (2/5) = ?

3

3) 0.6 × (-1.25) = ?

4

4) (-3/4) ÷ (-1/2) = ?

5

5) (5/8) × (-16/5) = ?

6

6) 2 ÷ (-3/4) = ?

7

7) (-2.5) × (-4) = ?

8

8) (-7/9) ÷ (7/9) = ?

9

9) 1.2 × 0 = ?

10

10) (-3) ÷ (-2/5) = ?

Explicación

Se multiplican numeradores y denominadores, manteniendo sinal.

Dividir por una fracción equivale a multiplicar por su inversa.

Multiplica decimales y conserva el signo.

División de fracciones: multiplicar por el recíproco.

Cancelación de factores comunes.

Dividir entre fracción equivale a multiplicar por su inversa.

Producto de dos negativos es positivo.

Dividir fracciones iguales da -1 si signos son opuestos.

Cualquier número times cero es cero.

Dividir por -2/5 multiplica por -5/2, signos positivos.

 
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