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Adding Fractions - YourTeacher.com - Math Help

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Uploaded by on Feb 21, 2008

For a complete lesson on adding fractions, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to add or subtract fractions using the least common denominator, which is the least common multiple for the denominators of the fractions. Once the fractions are given a common denominator by multiplying the numerator and denominator of each fraction by the appropriate number, then the fractions can be added or subtracted by adding or subtracting the numerators, and leaving the denominator the same.

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  • um the thing is u dont need to find the factors.

  • WOW why am i so stupid

  • i told my teacher about this 1 way im trying to find when your adding 3 ractions you can draw lines to it and make it look like smiley face but i forgot how to do it so ive been searching forever

  • Nice

  • omg talk faster dude for fck sakes i dont got all day the test is tomorrow

  • The lady is better

  • IM GOING TO FAIL MATH -_-

  • thats not really how ya do it, dude!

  • thanks, you helped me on my homework

  • 2 minutes of this guy= 45 minutes with a my math teacher

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