subtract
8x/x+1 - 3/x+1
please help ?

Question

subtract 
8x/x+1 - 3/x+1
 please help ?

anonymous · Answer

Is this like:$$\frac{ 8x }{ x+1 } - \frac{ 3 }{ x+1 }$$

anonymous · Answer

yes :)

anonymous · Answer

ok, well, it looks like lots of "stuff", but if you think about when you were just doing basic subtraction or addition with normal (non-algebra) fractions, if they had a common denominator, you could add or subtract directly...

like  4/7  +  1/7   = 5/7

anonymous · Answer

here your common denominator is x+1

But you can still add the stuff on top, and combine it all over the common denominator, x+1

anonymous · Answer

(well, it's subtracting here, not adding, but same idea)

anonymous · Answer

$$\frac{ 8x }{ x+1 } - \frac{ 3 }{ x+1 } = \frac{ (8x-3) }{ x+1 }$$

anonymous · Answer

Thank you

anonymous · Answer

you are welcome... glad to help!  Hope that made sense!