The aim of the video is to show how to reduce a fraction by factoring out prime numbers that are common to both the numerator and the denominator. The example shown in the video is 27/21. The number 27 can be achieved by multiplying 3 by 9 and the number 21 is the result of 3 multiplied by 7. The common factor, therefore in both the numerator and the denominator is 3. 3 on the top divided by 3 on the bottom is 1 and so this can be removed without affecting the value of the fraction, leaving 9/7. Therefore, the original fraction of 27/21 can be reduced to 9/7.
 Hot
 Latest

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

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

How To: Convert improper fractions to mixed numbers quickly

How To: Find the Percent Given Two Numbers

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

How To: Divide small numbers by big numbers

How To: Calculate Faster Than a Calculator

How To: Find the Slope Given 2 Ordered Pairs

How To: Convert Fahrenheit to Celsius with a formula

How To: Find the area & perimeter of triangles & squares

How To: Convert between diameter and radius

How To: Subtract a mixed number from a proper fraction in basic math

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

How To: Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle

How To: Find the 100th term in a sequence

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

How To: Write a slopeintercept equation given an XY table

How To: Calculate percent composition for chemistry

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

How To: Find extra points for a parabola (quadractic equation)

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

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

How To: Convert improper fractions to mixed numbers quickly

How To: Find the Percent Given Two Numbers

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

How To: Divide small numbers by big numbers

How To: Calculate Faster Than a Calculator

How To: Find the Slope Given 2 Ordered Pairs

How To: Convert Fahrenheit to Celsius with a formula

How To: Find the area & perimeter of triangles & squares

How To: Convert between diameter and radius

How To: Subtract a mixed number from a proper fraction in basic math

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

How To: Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle

How To: Find the 100th term in a sequence

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

How To: Write a slopeintercept equation given an XY table

How To: Calculate percent composition for chemistry

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

How To: Find extra points for a parabola (quadractic equation)
Be the First to Comment
Share Your Thoughts