# algebra fraction

• May 15th 2008, 07:30 PM
mikeymathmetician
algebra fraction
does anyone know the answer to my question it is very difficult and i need help thanks

4 5
___ - ___
a+2 A+2

mikey
• May 15th 2008, 07:31 PM
Mathstud28
Quote:

Originally Posted by mikeymathmetician
does anyone know the answer to my question it is very difficult and i need help thanks

4 - 5
___ ___
a+2 A+2

mikey

If you are asking $\frac{4}{a+2}-\frac{5}{a+2}$

Factor out the a+2 to get $\frac{1}{a+2}\bigg[4-5\bigg]=\frac{1}{a+2}[-1]=\frac{-1}{a+2}$
• May 16th 2008, 05:00 AM
Mathnasium
Assuming, as above, that it is $\frac{4}{a+2}-\frac{5}{a+2}$, perform the subtraction just like you always do once you have fractions with common denominators - simply subtract the numerator and leave the denominator as is.

Since 4 - 5 = -1, your answer is $\frac{-1}{a+2}$. No factoring required.