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Sonja [21]
2 years ago
15

As an improper fraction simplified

Mathematics
2 answers:
bazaltina [42]2 years ago
5 0

Answer:

For this question, you can make the denominators the same to get the answer.

LCM of 7 and 9 = 63

\frac{6}{7} + \frac{4}{9}  = \frac{54}{63} + \frac{28}{63} \\

         = \frac{82}{63}

         = 1\frac{19}{63}

ss7ja [257]2 years ago
3 0

Answer:

  82/63

Step-by-step explanation:

The sum can be found using the formula ...

  \dfrac{a}{b}+\dfrac{c}{d} =\dfrac{ad+bc}{bd}

For the given fractions, the sum is ...

  \dfrac{6}{7}+\dfrac{4}{9} =\dfrac{6\cdot9+7\cdot4}{7\cdot9}=\dfrac{54+28}{63}=\boxed{\dfrac{82}{63}}

_____

<em>Additional comment</em>

When the denominators have no common factor, the least common denominator is their product, as here.

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