Introduction to rational and irrational numbers | Algebra I | Khan Academy
Watch video Introduction to rational and irrational numbers | Algebra I | Khan Academy online without registration, duration 05 minute 54 second in high hd quality. This video was added by user Khan Academy 23 December 2013, don't forget to share it with your friends and acquaintances, it has been viewed on our site 2 million once and liked it 16 thousand people.