Watch Video on How to Multiply Fractions - Pre Algebra Help
Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/multiplyfractions.php Students learn to multiply fractions by multiplying across the numerators, and multiplying across the denominators. For example, to multiply 1/2 x 3/7, multiply across the numerators, 1 x 3 = 3, and multiply across the denominators, 2 x 7 = 14. So 1/2 x 3/7 = 3/14. Students also learn to cross-cancel when multiplying fractions. For example, to multiply 3/5 x 5/9, the 3 and 9 cross-cancel to 1 and 3, and the 5 and 5 cross-cancel to 1 and 1. Therefore, 3/5 x 5/9 can be rewritten as 1/1 x 1/3, and multiplying across the numerators and denominators, 1/1 x 1/3 = 1/3.
Duration : 0:0:51
[youtube aUUxl5og2Eo]
Tags: fraction, fractions, help, multiplication, Multiply, multiplying, rule
August 20th, 2009 at 8:18 pm
Wow I cant believe …
Wow I cant believe I looked this up. I needed a refresher on fractions:)
August 20th, 2009 at 8:18 pm
i admit that she …
i admit that she sounds very educated…but she is not hot…
August 20th, 2009 at 8:18 pm
lol…yea
lol…yea
August 20th, 2009 at 8:18 pm
get serious lol
get serious lol
August 20th, 2009 at 8:18 pm
hehe
hehe
August 20th, 2009 at 8:18 pm
she looks mad
she looks mad
August 20th, 2009 at 8:18 pm
thank you lady … …
thank you lady …needed a fresher
August 20th, 2009 at 8:18 pm
*facepalm*
*facepalm*
August 20th, 2009 at 8:18 pm
You can’t use …
You can’t use proper grammar or even spell “retarded’…you reTART
August 20th, 2009 at 8:18 pm
i knew just forgot, …
i knew just forgot, thus not retard, just forgetful
August 20th, 2009 at 8:18 pm
your retarted if …
your retarted if you didnt know how to do this
August 20th, 2009 at 8:18 pm
thank u soooooooo …
thank u soooooooo much you have helped me with my homework 2 times thank u!!!!!!!!!!!!!
August 20th, 2009 at 8:18 pm
Its helpful but all …
Its helpful but all i wanna do -is get her to sit down with me and give me a full lesson……… for-real
August 20th, 2009 at 8:18 pm
She is what …
She is what teachers used to be like, stern and surly, she rocks!
August 20th, 2009 at 8:18 pm
aw; zed …
aw; zed everywhere , now im in lowest terms (sperm count)…:)
August 20th, 2009 at 8:18 pm
just shut the …
just shut the up
August 20th, 2009 at 8:18 pm
LMFAO!!
LMFAO!!
August 20th, 2009 at 8:18 pm
a smile completes …
a smile completes any look. someone should get her one for christmas.
August 20th, 2009 at 8:18 pm
lol
lol
August 20th, 2009 at 8:18 pm
pretty sure it is…
pretty sure it is…
August 20th, 2009 at 8:18 pm
yeah it is…
yeah it is…
August 20th, 2009 at 8:18 pm
thats not how u do …
thats not how u do it.
August 20th, 2009 at 8:18 pm
Ya’llzzz mean.
…
Ya’llzzz mean.
She’s just trying to help.
& CAN YOU DO THE SAME THING DIVISION WISE?
August 20th, 2009 at 8:18 pm
Those teachers at …
Those teachers at yourteacherDOTcom ae all robots i’ve seen alot of them, they look like ADD kids overusing pills
August 20th, 2009 at 8:18 pm
yea ur voice is …
yea ur voice is werid when u said lowest terms but u helped me alot and plus that was quite easy really. srry for the insult too.