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

How To: Find the Percent Given Two Numbers

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

How To: Find a number given Its percent

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Do long division without a calculator

How To: Find the slope of a line given 2 points with fractions

How To: Find the area of a parallelogram using geometry

How To: Find the coordinate of a point

How To: Calculate Faster Than a Calculator

How To: Write a logarithm as a sum or difference of logarithms

How To: Find the area of a circle when you know the diameter

How To: Find the slope from a set of points

How To: Simplify cube roots

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator

How To: Factor a trinomial with negative leading coefficient

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

How To: Calculate Type I (Type 1) errors in statistics

How To: Add ounces and pounds together in basic mathematics

How To: Calculate the area of a parallelogram

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

How To: Find the Percent Given Two Numbers

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

How To: Find a number given Its percent

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Do long division without a calculator

How To: Find the slope of a line given 2 points with fractions

How To: Find the area of a parallelogram using geometry

How To: Find the coordinate of a point

How To: Calculate Faster Than a Calculator

How To: Write a logarithm as a sum or difference of logarithms

How To: Find the area of a circle when you know the diameter

How To: Find the slope from a set of points

How To: Simplify cube roots

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator

How To: Factor a trinomial with negative leading coefficient

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

How To: Calculate Type I (Type 1) errors in statistics

How To: Add ounces and pounds together in basic mathematics

How To: Calculate the area of a parallelogram
Be the First to Comment
Share Your Thoughts