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: Convert Fahrenheit to Celsius with a formula

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

How To: Do long division without a calculator

How To: Convert between diameter and radius

How To: Reduce fractions to their simplest form in basic math

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

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

How To: Calculate percent composition for chemistry

How To: Find the Percent Given Two Numbers

How To: Solve percentages without a calculator

How To: Find the Slope Given 2 Ordered Pairs

How To: Calculate the age of the universe w/ Hubble's constant

How To: Reduce a fraction to its simplest form in basic math

How To: Solve & find the least common multiple

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

How To: Identify characteristics of a sample during a survey

How To: Calculate the area of a parallelogram

How To: Find a missing side of a triangle, similar to another

How To: Find the coordinate of a point

How To: Calculate Faster Than a Calculator

How To: Convert Fahrenheit to Celsius with a formula

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

How To: Do long division without a calculator

How To: Convert between diameter and radius

How To: Reduce fractions to their simplest form in basic math

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

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

How To: Calculate percent composition for chemistry

How To: Find the Percent Given Two Numbers

How To: Solve percentages without a calculator

How To: Find the Slope Given 2 Ordered Pairs

How To: Calculate the age of the universe w/ Hubble's constant

How To: Reduce a fraction to its simplest form in basic math

How To: Solve & find the least common multiple

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

How To: Identify characteristics of a sample during a survey

How To: Calculate the area of a parallelogram

How To: Find a missing side of a triangle, similar to another

How To: Find the coordinate of a point
Be the First to Comment
Share Your Thoughts