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3:2 powerpointmaths.com Quality resources for the mathematics classroom Reduce your workload and cut down planning Enjoy a new teaching experience Watch your students interest and enjoyment grow Key concepts focused on and driven home Over 100 files available with many more to come 1000’s of slides with nice graphics and effects. powerpointmaths.com Get ready to fly! © Powerpointmaths.com All rights reserved.
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8 Sector Circle
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1/8 + 1/8
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1/8 + 1/4
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1/4 + 1/4
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1/2 + 1/8
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1/2 + 1/4
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3/8 + 1/4
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3/8 + 3/8
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1/2 + 3/8
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8 Sector Blank
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Worksheet
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12 Sector Circle
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1/2 + 1/12
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1/2 + 1/6
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1/2 + 1/4
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1/2 + 1/3
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1/3 + 1/12
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1/3 + 1/6
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1/3 + 1/4
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1/4 + 1/6
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1/4 + 1/12
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1/6 + 1/12
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12 Sector Blank
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Worksheet
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REMEMBER: Numerator Denominator Adding/subtracting fractions with the same denominator is easy. You simply add/subtract the numerators. Addition/Subtraction of Fractions Num/Den
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Adding and subtracting fractions with the same denominator is easy. You simply add or subtract the numerators. Same Den
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Adding/subtracting fractions with different denominators is more complicated. You need to find the Lowest Common Multiple (LCM) of the denominators first. Remember: The Lowest Common Multiple of 2 or more numbers is the smallest number that the given numbers will divide into without remainder. 2015 1612 9 86 43 Multiples of 3 and 4 12 is the LCM Find the lowest common multiple of the following numbers: 3 and 45 and 203 and 8 10025 8020 6015 4010 205 Multiples of 5 and 20 20 is the LCM 6424 5621 4818 4015 3212 249 166 83 Multiples of 3 and 8 24 is the LCM LCM
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+ + = 2015 1612 9 86 43 Multiples of 3 and 4 12 is the LCM Equivalent + Diagram 1
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+ Multiples of 5 and 8 7240 6435 5630 4825 4020 3215 1610 85 40 is the LCM Equivalent + = + Diagram 2
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+ 3020 2416 1812 8 64 Multiples of 4 and 6 12 is the LCM + Equivalent = + Diagram 3
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Example questions 24 15 + 8 1 2 20 8 + 5 3 12 1 + 9 Examples + 1
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Example questions 8 6 + 5 4 5 36 14 +33 6 72 40 + 27 Examples + 2
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- - = 2015 1612 9 86 43 Multiples of 3 and 4 12 is the LCM Equivalent - Diagram 1
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- - = 2015 1612 9 86 43 Multiples of 3 and 4 12 is the LCM Equivalent
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- Multiples of 5 and 8 7240 6435 5630 4825 4020 3215 1610 85 40 is the LCM Equivalent - = - Diagram 2
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- Multiples of 5 and 8 7240 6435 5630 4825 4020 3215 1610 85 40 is the LCM Equivalent - =
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- 3020 2416 1812 8 64 Multiples of 4 and 6 12 is the LCM - Equivalent = -Diagram 3
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- 3020 2416 1812 8 64 Multiples of 4 and 6 12 is the LCM - Equivalent =
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Example questions 24 15 - 8 1 2 20 8 - 5 3 12 9 - 1 Examples - 1
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Example questions 8 6 - 5 4 5 36 33 -14 6 72 40 - 27 Examples - 2
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