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Watch Video on Subtracting Mixed Numbers - Pre Algebra Help

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Access full lesson containing this video at: http://www.yourteacher.com/pre... Students learn to subtract mixed numbers by first subtracting the fractions, then subtracting the whole numbers. For example, to subtract 6 1/3 - 4 2/3, first subtract 1/3 � 2/3. However, notice that 1/3 � 2/3 equals a negative fraction. In this situation, the first fraction, 6 1/3, can be rewritten as 5 + 1 1/3, or 5 + 4/3, or 5 4/3. Therefore, the original problem, 6 1/3 - 4 2/3, can be rewritten as 5 4/3 - 4 2/3. Now, subtract the fractions, 4/3 � 2/3, to get 2/3, and subtract the whole numbers, 5 �4, to get 1. So 5 4/3 - 4 2/3 = 1 2/3. Note that some of the problems in this lesson also require the student to find a common denominator for the fractions. For example, 8 5/16 - 1 1/8.

Channel: Education
Uploaded: November 30, 1999 at 12:00 am
Author: yourteachermathhelp

Length: 01:35
Rating: 4.80
Views: 4161

Tags: fractions  math  mixed  numbers  subtract  subtracting  subtraction  

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Video Comments

rockertillmydeath (November 30, 1999 at 12:00 am)
wow this is heaven!! i feel sorry for the kids of 10 years ago...they didn't have this shit we do now
Poppejazzmanbass (November 30, 1999 at 12:00 am)
yeah what a cold bitch
leftovers5 (November 30, 1999 at 12:00 am)
wow its all so clear to me now thanks!!!!! :)
brooks085 (November 30, 1999 at 12:00 am)
okay this is said easier all u do u subtract 1 from the whole number. then u add the top number to the bottom number and after this is done u can continue with the problem
SpeckDock (November 30, 1999 at 12:00 am)
Great vid, however the lady creeped me out.
famouschick51 (November 30, 1999 at 12:00 am)
well let me help...you want to know how she got 4/3 right..well you add 3+1 from 1.1/3 and from there ...now liscen again oh and im 12 years old so i have trouble with it too but keep trying cuz i get it now..
res0x93d (November 30, 1999 at 12:00 am)
I agree with you i don't get it
jen00384 (November 30, 1999 at 12:00 am)
Dumb question... How does 9+1 1/3 become 9+4/3 or 9 4/3? I think my real question is how does the 1 in 1/3 become a 4 to make 4/3? I know I'm missing something here, but I can't figure it out.
funkyboy90000 (November 30, 1999 at 12:00 am)
dang she teaches better than my own teacher!!!!!!!!!!!
tuberroni (November 30, 1999 at 12:00 am)
someone pay for that and upload all there stuff for free and this woman needs speach lessons.

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