Fractions Adding Subtracting Demonstration This resource provides animated
Fractions – Adding & Subtracting – Demonstration This resource provides animated demonstrations of the mathematical method. Check animations and delete slides not needed for your class.
We need the denominators to be the same. Which fraction should we change to make the calculation easy? Double the denominator Double the numerator
When we add or subtract fractions we must have a common denominator. What common denominator could we use? Numerator & Denominator × 3 Numerator & Denominator × 2
When we add or subtract fractions we must have a common denominator. What common denominator could we use? Numerator & Denominator × 5 Numerator & Denominator × 6
EXAMPLE What common denominator could we use? Numerator & Denominator × 2 Numerator & Denominator × 3
EXAMPLE What common denominator could we use? Numerator & Denominator × 3 Numerator & Denominator × 4
EXAMPLE What common denominator could we use? Numerator & Denominator × 2 Numerator & Denominator × 3
EXAMPLE What common denominator could we use? Numerator & Denominator × 4 Numerator & Denominator × 3
EXAMPLE What common denominator could we use? Numerator & Denominator × 5 Numerator & Denominator × 4
EXAMPLE What common denominator could we use? Numerator & Denominator × 2 Numerator & Denominator × 3
EXAMPLE What common denominator could we use? Numerator & Denominator × 4 Numerator & Denominator × 5
EXAMPLE What common denominator could we use? Numerator & Denominator × 7 Numerator & Denominator × 3
EXAMPLE What common denominator could we use? Numerator & Denominator × 6 Numerator & Denominator × 5
EXAMPLE What common denominator could we use? Numerator & Denominator × 3 Numerator & Denominator × 2
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EXAMPLE Answers ?
Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths. co. uk
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