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Racionales: operaciones básicas

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Racionales: operaciones básicas

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Quiz sobre números racionales y operaciones

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Guillermo Dante Vergara Acuña
Guillermo Dante Vergara Acuña
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Racionales: operaciones básicas
 

Racionales: operaciones básicasOnline version

Quiz sobre números racionales y operaciones

by Guillermo Dante Vergara Acuña
1

1) 1/3 + 2/5 = ?

2

2) (3/4) - (5/6) = ?

3

3) (7/8) * (2/3) = ?

4

4) (5/6) ÷ (3/4) = ?

5

5) -3/4 + 1/2 = ?

6

6) 3/4 ÷ -1/2 = ?

7

7) (2/5) + (7/5) = ?

8

8) (-1/3) * (-3/4) = ?

9

9) (9/10) - (3/5) = ?

10

10) (4/7) ÷ ( -2/7 ) = ?

Explicación

Sumas de fracciones: denominadores comunes (15). 11/15 es correcto.

Convierte a un común denominador (24) y resta. -1/12 es correcto.

Multiplicación de fracciones: multiplicas numeradores y denominadores.

Dividir por una fracción es multiplicar por su inversa. 10/9 es correcto.

Convierte a denominador común (4): -3/4 + 2/4 = -1/4.

Dividir por -1/2 equivale a multiplicar por -2.

Numeradores: 2+7 sobre 5 = 9/5.

Producto de signos positivos da positivo; 1/4 es correcto.

Convierte 3/5 a 6/10; 9/10 - 6/10 = 3/10.

Dividir por -2/7 multiplica por -7/2: (4/7)*(-7/2) = -2.

 
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