The Purplemath Forums

Helping students gain understanding and self-confidence in algebra.

Skip to content

rational equation  TOPIC_SOLVED

Simplificatation, evaluation, linear equations, linear graphs, linear inequalities, basic word problems, etc.
Post a reply

rational equation

Postby Motherof8 on Mon May 02, 2011 2:42 am

What should you multiply to get rid of the denominators in this equation: 1/21 + 1/b = 1/b-6.25?
Motherof8
 
Posts: 46
Joined: Sat Feb 12, 2011 12:32 am
Top

Sponsor

Sponsor
 
Top

  TOPIC_SOLVED

Postby stapel_eliz on Mon May 02, 2011 10:33 am

Motherof8 wrote:What should you multiply to get rid of the denominators in this equation: 1/21 + 1/b = 1/b-6.25?

You should multiply by the lowest common denominator (or, which is the same thing, the least common multiple of the three denominators). :wink:
User avatar
stapel_eliz
 
Posts: 1705
Joined: Mon Dec 08, 2008 4:22 pm
Top
Post a reply

Return to Beginning Algebra

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group. Color scheme by ColorizeIt!