How to add and subtractions with different denominators

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Presentation transcript:

How to add and subtractions with different denominators Fractions How to add and subtractions with different denominators

Fractions: Review Example Parts Addition Subtraction Division multiplication

Fractions: Different Denominators The least common denominator or LCD of two fractions is the smallest number than can be divided by both denominators

Fractions with different denominators To find the least common denominator, you will divide both the numerator and the denominator by their least common factor

Example: 3 / 4 + 1/ 6 = ? What is common to both 4 and 6? You are right, it is 12 ¾=9/12 1/6=2/12 9/12 + 2/12= 11/12

Finding the LCD

Example:

Instructions: samples www.coolmath.com

Scoring Rubric Your Rubric Math - Problem Solving Fun with Fractions.mht

More On-line Resources www.funbrain.com www.AAAMath.com www.edhelper.com www.brainpop.com www.coolmath.com

The End I do hope that you enjoyed this journey with fractions. Remember practice your problems often. Take time to apply real world situations to your work. Good Bye!!