Mercedes Polanski
Mercedes Polanski voted up HappyTwo BeHereTwo's answer

John McCann is correct.  When adding and subtracting fractions, only add or subtract the numerator (top number).  Keep the denominator (bottom number) the same.  In your example, three fourths plus three fourths, 3+3=6 fourths. 

Here's a visual of another addition problem.





Mercedes Polanski
Mercedes Polanski voted up HappyTwo BeHereTwo's answer

John McCann is correct.  When adding and subtracting fractions, only add or subtract the numerator (top number).  Keep the denominator (bottom number) the same.  In your example, three fourths plus three fourths, 3+3=6 fourths. 

Here's a visual of another addition problem.