what is the lowest common denominator of 2+2/a-1 and b-4/a^2-1

what is the lowest common denominator of  a+2/a-1 and b-4/a^2-1
in Algebra 1 Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

bottom1:  a-1

bottom2: a^2 - 1 = (a-1)(a+1)

you need (a-1)(a+1) to be able to make both bottoms

LCD is a^2 - 1
by Level 13 User (103k points)

Related questions

2 answers
Lowest common denominator
asked Jun 24, 2013 in Fraction Problems by anonymous | 1.4k views
1 answer
lowest common denominator of 11/14 and 2/7
asked Feb 13, 2013 in Algebra 1 Answers by anonymous | 746 views
1 answer
lowest common denominator of 11/14 and 43/63
asked Jan 25, 2012 in Least Common Denominator by jillywillw100 Level 1 User (120 points) | 1.2k views
1 answer
What is the lowest common denominator of 7/8
asked Jan 4, 2012 in Pre-Algebra Answers by anonymous | 805 views
1 answer
what is the lowest common denominator of 4 and 28
asked Dec 26, 2011 in Pre-Algebra Answers by jmcdowell Level 1 User (120 points) | 1.0k views
3 answers
how do you find the lowest common denominator
asked Dec 15, 2011 in Algebra 1 Answers by anonymous | 2.2k views
2 answers
find least common denominator 2/5 and 1/15
asked Dec 31, 2012 in Algebra 1 Answers by anonymous | 1.4k views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. complete the following. 825 use each digit once .make the two smallest 3 digit numbers and two largest 3-digit number (2)
  4. Solve 15 -1(12÷4+1)? (4)
  5. 8:4(5+2) (3)

Most popular tags

87,545 questions
99,733 answers
2,417 comments
485,970 users