Watch Video on Multiplying Fractions - Algebra Help
Access full lesson containing this video at: http://www.yourteacher.com/algebra1/multiplyingfractions.php Students learn to multiply two fractions by multiplying across the numerators, and multiplying across the denominators. Students learn to divide two fractions by taking the reciprocal of the second fraction, then multiplying the fractions.
Duration : 0:1:31
[youtube JtCRJhoLElc]
Tags: denominators, division, fractions, math, multiplication, Multiply, numerators, reciprocal
August 17th, 2009 at 10:10 pm
0ooooohh thank u …
0ooooohh thank u sori for the late reply.
August 17th, 2009 at 10:10 pm
was adequate
was adequate
August 17th, 2009 at 10:10 pm
LOKAL93 what he did …
LOKAL93 what he did was find the greatest number that goes into both the 15 and the 5 first. You do not just divide to find out. but that was a very good attempt.
5 goes into 15, 3 times. 5 goes into 5, 1 time. This is how he came up with the 3 and the 1.
2 goes into both 14 and 4. 2 goes into 14, 7 times. 2 goes into 4, 2 times. This is how he came up with 7 and 2.
August 17th, 2009 at 10:10 pm
finally a video …
finally a video that actually helps u understand multiplying fractions
August 17th, 2009 at 10:10 pm
how did he get 2 …
how did he get 2 and 7 crossways, 15 divided by 5 is 3 i understand that but 14 divided by 4 is 3.5 and he wrote 7 and 1. im lost!!!
August 17th, 2009 at 10:10 pm
you sound like a …
you sound like a mixture between the clear eyes guy and dr.phil …lol
August 17th, 2009 at 10:10 pm
he masturbates with …
he masturbates with puppets
August 17th, 2009 at 10:10 pm
I agree with …
I agree with rudeawakening101.This way makes u believe that 5 goes into to 15 3 times, which it does. Then when you look at 4 and 14,this can be confusing. I wld do 15/5 1st and reduce it, so 5 is common in both, u do 15/5=3, then 5/5=1. Then reduce 14/4, coz 2 is common in both, u do 14/2=7, then
4/2=2. now just multiply the numerator then the denomenator. hope this helps.
August 17th, 2009 at 10:10 pm
This video does a …
This video does a poor job of explaining cross cancelling.
August 17th, 2009 at 10:10 pm
The cross canceling …
The cross canceling method can lead to major errors and is very sloppy. A much better way (and a way to guarantee the correct answer) is to use the prime factorization for every number in the numerator and denominator. That way you can SEE what you are canceling, and you are sure to get the answer correct 100% of the time.
August 17th, 2009 at 10:10 pm
I need help with …
I need help with cross cancelling please!!
August 17th, 2009 at 10:10 pm
i bet this guy was …
i bet this guy was the highlight of the party