SOLUTION: Problem:Change the sign to an equivalent fraction: -a + 2b over 2x - y. Do I change the entire fraction to a neg. and change the sign in the numerator (-a + 2b) to (a - 2b)?

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: Problem:Change the sign to an equivalent fraction: -a + 2b over 2x - y. Do I change the entire fraction to a neg. and change the sign in the numerator (-a + 2b) to (a - 2b)?       Log On


   

Question 47153: Problem:Change the sign to an equivalent fraction: -a + 2b over 2x - y. Do I change the entire fraction to a neg. and change the sign in the numerator (-a + 2b) to (a - 2b)?
Answer by pizza(14) About Me  (Show Source):
You can put this solution on YOUR website!
Yes, I believe that is correct. However, you must remember to change the sign of the denominator as well. You are, in practice, multiplying the numerator by -1, and what you do to the numerator, you must do to the denominator.