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nata0808 [166]
3 years ago
11

Un niño esta reparando la llanta de su bicicleta y encuentra que la tuerca del eje central mide 5 3/4 pulgada,pero sus llaves es

tan medidas en milimetros (mm) ¿De que medida es la tuerca en milimetros?
Spanish
1 answer:
RideAnS [48]3 years ago
7 0

Answer:

La tuerca mide 5\frac{3}{4} pulgadas, equivalente a 146,05 mm.

Explanation:

La tuerca mide 5 3/4 pulgadas.  

Una fracción mixta es un número entero y una fracción combinadas, como es el 5 3/4. Una fracción impropia es aquella donde el numerador es mayor (o igual) que el denominador.

Para convertir una fracción mixta en impropia,  se debe multiplicar la parte entera por el denominador.  A este resultado se debe sumar al numerador.  Este número será el nuevo denominador de la fracción impropia. El denominador será el mismo que  tenía el número mixto. Entonces:

a \frac{b}{c} =\frac{(a*c)+b}{c}

En este caso:

5 \frac{3}{4} =\frac{(5*4)+3}{4}=\frac{20+3}{4}

5 \frac{3}{4} =\frac{23}{4}

Para convertir una fracción en un decimal, se divide el numerador entre el denominador. En este caso, dividiendo 23 por 4 se obtiene 5,75.

Siendo 1 pulgada=25,4 mm, se puede aplicar la siguiente regla de tres simple: si 1 pulgada equivale a 25,4 mm, 5,75 pulgadas a cuántos mm equivale?

medida en mm=\frac{5,75 pulgadas*25,4 mm}{1 pulgada}

Resolviendo:

medida en mm= 146,05 mm

<u><em>La tuerca mide </em></u>5\frac{3}{4}<u><em> pulgadas, equivalente a 146,05 mm.</em></u>

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