SOLUTION: Perform the indicated operation and, if possible, simplify. Please show all of your work. 3/7 + 2/9=

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Perform the indicated operation and, if possible, simplify. Please show all of your work. 3/7 + 2/9=      Log On


   

Question 354429: Perform the indicated operation and, if possible, simplify. Please show all of your work.
3/7 + 2/9=
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
3%2F7%22%22%2B%22%222%2F9
Since denominators 7 and 9 have no common factors other than 1,
we find the LCD by multiplying them together:  7%2A9=63

We multiply the first fraction by red%289%2F9%29 and the second 
fraction by red%287%2F7%29

red%289%2F9%29expr%283%2F7%29%22%22%2B%22%22red%287%2F7%29expr%282%2F9%29

Multiply numerators and denominators

27%2F63%22%22%2B%22%2214%2F63

Now add the numerators 27+14 = 41 and place the sum over the LCD

41%2F63

That's the final answer.  It does not reduce.

Edwin