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castortr0y [4]
3 years ago
13

Una familia ha consumido en un día de verano: dos botellas de litro y medio de agua, 5 botellas de 1/4 de litro de jugo de manza

na, 4 botellas de 1/4 de litro de limonada. ¿Cuántos litros de líquido han bebido?, ¿podemos directamente sumar y restar fracciones de distintos denominadores?
Mathematics
1 answer:
Natalija [7]3 years ago
5 0

Answer:

La familia bebió:

2 botellas de 1.5 L = 2*1.5L = 3L

5 botellas de 1/4 de litro = 5*(1/4 L) = 5/4 L

4 botellas de 1/4 de litro = 4*(1/4 L) = 1 L

Sumando eso, tenemos:

3 L + (5/4) L + 1L = 4L + 5/4 L = (16/4) L + 5/4 L = (21/4) L.

21/4 Litros tomaron en total.

¿podemos directamente sumar y restar fracciones de distintos denominadores?

No, tenemos que tener el mismo denominador para sumar o restar.

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