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makkiz [27]
2 years ago
10

Which expression has a sum of 1 2/21

Mathematics
1 answer:
mr_godi [17]2 years ago
5 0

Answer:

A. is the answer

Step-by-step explanation:

the LCM of 7 and 3 is 21.

When added it would be 9+14 =23

23/21= 1 2/21

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Jacob used 1/7 of a liter of water to fill 1/9 of the fish aquarium. How many liters of water are needed to fill the aquarium?
laila [671]
Jacob used 1/7 of a liter of water.
He needs to fill 1/9 of the fish aquarium.
Find how many liters would Jacob need to fill the aquarium
=> Let x = liters of water need to fill the aquarium
=> x/1 = 1/7 divided by 1/9
=> x = 1/7 x 9/1
=> x = 9/7, since this is an improper fraction, let’s convert it to mixed fraction
=> x  = 1 and 2/7
So, Jacob need 1 and 2/7 liter of water to fill the whole aquarium.



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3 years ago
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Simplified quotient of x+8/x^2÷2x+16/2x^2?
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Answer:

1

Step-by-step explanation:

The exprssion to be simplified is,

\frac{x + 8}{ {x}^{2}}  \div  \frac{2x + 16}{ {2x}^{2} }

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How do I do this fraction with Distributive Property???
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Answer:

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