Watchers of this video will learn how to find the "lowest common multiple", the lowest whole number that can be divided by each of two numbers evenly. For example, the lowest common multiple of 8 and 12 is the lowest number of which 8 and 12 are both factors. To find the lowest common multiple of 2 numbers, find the factors of both numbers. One way to do this is to make a "factor tree", drawing branches with factors from each number until it cannot be factored any more. Once both numbers are completely factored, cross off any numbers that are duplicated in both; for example, with 8 and 12, the factors are 2 x 2 x 2 and 2 x 2 x 3. Since 2 is found in both sets of factors, it can be crossed off. Since it is found duplicated again, another set of 2's can be crossed off. This leaves 2 and 3. Next, multiply the left over factors by the other original number (so 2 is multiplied by 12 and 3 is multiplied by 8). For both cases, the answer is 24, so 24 is the lowest common multiple of 8 and 12.
 Hot
 Latest

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find a number given Its percent

How To: Find measure of an exterior angle of a regular polygon

How To: Find least common multiple in rational expressions

How To: Solve population proportion problems in statistics

How To: Find the length of a side of a triangle using cosine

How To: Solve problems involving functions in algebra

How To: Do long division without a calculator

How To: Solve equations with the order of operations

How To: Find the Height of a Trapezoid.

How To: Find the area of a triangle when given 2 sides & angle

How To: Find the coordinate of a point

How To: Graph half an ellipse

How To: Convert fractions to percents in two steps

How To: Determine the age of a fossil using carbon14

How To: Find the formula of a piecewise function given a graph

How To: Write a fraction as a decimal

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find a number given Its percent

How To: Find measure of an exterior angle of a regular polygon

How To: Find least common multiple in rational expressions

How To: Solve population proportion problems in statistics

How To: Find the length of a side of a triangle using cosine

How To: Solve problems involving functions in algebra

How To: Do long division without a calculator

How To: Solve equations with the order of operations

How To: Find the Height of a Trapezoid.

How To: Find the area of a triangle when given 2 sides & angle

How To: Find the coordinate of a point

How To: Graph half an ellipse

How To: Convert fractions to percents in two steps

How To: Determine the age of a fossil using carbon14

How To: Find the formula of a piecewise function given a graph

How To: Write a fraction as a decimal
Be the First to Comment
Share Your Thoughts