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makkiz [27]
3 years ago
14

Why should you find the least common denominator when adding or subtracting rational expressions?

Mathematics
1 answer:
WINSTONCH [101]3 years ago
6 0

Answer:

It is necessary to look for the least common denominator when one is trying to add or subtract rational expressions that do not have the same denominator.

Step-by-step explanation:

for example the denominator of the two addends are not the same. One has (x+2), the other (x-2).

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