Pre-Algebra: Least Common Multiple Help

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Pre-Algebra: Least Common Multiple

The least common multiple of a given set of whole numbers is the smallest whole number that is divisible by each number in the set.

In arithmetic and number theory, the least common multiple or lowest common multiple (lcm) or smallest common multiple of two integers a and b is the smallest positive integer that is a multiple of both a and b. Since it is a multiple, it can be divided by a and b without a remainder. If there is no such positive integer, e.g., if a = 0 or b = 0, then lcm(a, b) is defined to be zero.
 
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Pre-Algebra: Least Common Multiple Videos

Solving Equations With Fractions With Unlike Denominators 2
Video Clip Length: 2 minutes 5 seconds
Video Clip Views: 50836

denominator, equations, fractions, lcd, lcm, least common denominator, least common multiple, like denominators, number sense, numbers, solving equations, unlike denominators
Addition Of Mixed Numbers With Unlike Denominators
Video Clip Length: 3 minutes 19 seconds
Video Clip Views: 27685

arithmetic operations, denominator, fractions, lcd, lcm, least common denominator, least common multiple, like denominators, mixed fractions, mixed numbers, number sense, numbers, operations, unlike denominators
Least Common Multiple
Video Clip Length: 2 minutes 36 seconds
Video Clip Views: 16031

lcd, lcm, least common denominator, least common multiple
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Pre-Algebra: Least Common Multiple Word Problems

Carl has a soccer game
Carl has a soccer game every 4th day,Matt has one every 5th ...
The greatest common factor of two numbers
The greatest common factor of two numbers is 30.  Their least common multiple is 420.  One of the numbers is 210...
Three clocks ring once at the same time
Three clocks ring once at the same time. After that, the first clock rings after every 90 minutes, the second after every 30 minutes, and third after every 60 ...
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Pre-Algebra: Least Common Multiple Practice Questions

least common multiple of 20 and 55
What is the least common multiple of 3,8...
LCM of 56 &210 =?
1/2+1/6
find the lcm of this polynomial 2p^4q^2 and 8p3q
2,3,4
3/20 + 4 = ?
Mr. Simon wants to make packages of art supplies for hisstudents.Pads of paper come 4 to a box,pencils come 27 to a box, and erasers 12 to a box.What is the least number of kitshe can make if he wants each kit to be the same and he wants no supplies left over? How many boxes of papermust he buy?how many boxes of ...

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This Pre-Algebra page lists video tutorials, worksheets and word problems on least common multiple topic.