Math Question?

Question

So the math problem is this
2/c+1 , - 1
_________
2 +, 5/c+1

So I times both side by the LCD (c+1) to get rid of the fractions

And I got this
2 - (c+1)
________
2(c+1) + 5

Am I doing it right so far ? and If I am , In the numerator am I supposed to multiply the - with (c+1

Answer 1

What is the purpose of the comma?

(2-c-1)/(2c+2+5)
= (1-c)/(2c+7)

Answer 2

Yes. You're doing it right so far.

Yes. Mulitply the "-" with (c+1) to get "-c-1", and combine similar terms in the numerator. Then, multiply the "2" in the denominator by "(c+1)" and combine similar terms. Simplify the resulting fraction (if possible), and you'll have your answer.