What is the sum of rational expressions

Mathematics

1 answer:

rjkz [21]3 years ago

6 0

Since you have a common denominator, just add the numerators and set the sum over the common denominator.

$\dfrac{15}{7x} + \dfrac{12}{7x} = \dfrac{15 + 12}{7x} = \dfrac{27}{7x}$

There is no common factor of 27 and 7x, so the fraction cannot be reduced.

Answer: C. $\dfrac{27}{7x}$

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11.

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