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: Do long division without a calculator

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

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

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

How To: Find the Percent Given Two Numbers

How To: Calculate Faster Than a Calculator

How To: Figure out the domain & range of a piecewise function

How To: Find a number given Its percent

How To: Find the Slope Given 2 Ordered Pairs

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

How To: Solve word problems involving domain and range

How To: Find density using the water displacement method

How To: Isolate a variable

How To: Calculate percent error in chemistry lab activities

How To: Find the 100th term in a sequence

How To: Complete a proof involving segments

How To: Find the opposite and absolute value of a number

How To: Find the area of a parallelogram using geometry

How To: Calculate the area of a parallelogram

How To: Round a decimal number to the nearest tenth in basic arithmetic

How To: Do long division without a calculator

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

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

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

How To: Find the Percent Given Two Numbers

How To: Calculate Faster Than a Calculator

How To: Figure out the domain & range of a piecewise function

How To: Find a number given Its percent

How To: Find the Slope Given 2 Ordered Pairs

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

How To: Solve word problems involving domain and range

How To: Find density using the water displacement method

How To: Isolate a variable

How To: Calculate percent error in chemistry lab activities

How To: Find the 100th term in a sequence

How To: Complete a proof involving segments

How To: Find the opposite and absolute value of a number

How To: Find the area of a parallelogram using geometry

How To: Calculate the area of a parallelogram

How To: Round a decimal number to the nearest tenth in basic arithmetic
Be the First to Comment
Share Your Thoughts