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Adding Unlike Fractions

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1 Adding Unlike Fractions
next 5.NF#1 Adding Unlike Fractions Adding Unlike Fractions Using Multiples © Math As A Second Language All Rights Reserved

2 Directions for the Teacher
next next next Directions for the Teacher Click each time next appears. Review finding common multiples with your students. Have students add the fractions on a piece of paper or review orally. © Math As A Second Language All Rights Reserved

3 next next next next next next next next next 2 1 2 2 = × 2 1 1 4 1 + × = 4 3 4 least common { 2, 4, 6, 8, 10, 12…} 4 multiples { 4, 8, 12, 16, 20…} 4 © Math As A Second Language All Rights Reserved

4 next next next next next next next next next 4 2 3 8 = × 3 3 1 4 3 + × = 4 11 12 least common { 3, 6, 9, 12, 15…} 12 multiples { 4, 8, 12, 16, 20…} 12 © Math As A Second Language All Rights Reserved

5 next next next next next next next next next 5 1 3 5 = × 3 3 2 5 6 + × = 5 11 15 least common { 3, 6, 9, 12, 15…} 15 multiples { 5, 10, 15, 20…} 15 © Math As A Second Language All Rights Reserved

6 next next next next next next next next next 3 1 2 3 = × 2 2 1 3 2 + × = 3 5 6 least common { 2, 4, 6, 8, 10, 12…} 6 multiples { 3, 6, 9, 12, 25…} 6 © Math As A Second Language All Rights Reserved

7 next next next next next next next next next 5 1 4 5 = × 4 4 2 5 8 + × = 5 13 20 least common { 4, 8, 12, 16, 20…} 20 multiples { 5, 10, 15, 20…} 20 © Math As A Second Language All Rights Reserved

8 next next next next next next next next next 3 1 3 3 = × 3 1 4 9 4 + × = 9 7 9 least common { 3, 6, 9, 12, 15…} 9 multiples { 9, 18, 27, 36…} 9 © Math As A Second Language All Rights Reserved

9 next next next next next next next next next 3 2 6 6 = × 6 2 4 9 8 + × = 9 14 18 least common {6, 12, 18, 24…} 18 multiples { 9, 18, 27, 36…} 18 © Math As A Second Language All Rights Reserved

10 next next next next next next next next next 4 2 6 8 = × 6 3 3 8 9 + × = 8 17 24 least common {6, 12, 18, 24, 30…} 24 multiples { 8, 16, 24, 32, 40…} 24 © Math As A Second Language All Rights Reserved

11 next next next next next next next next next 4 1 7 4 = × 7 7 1 4 7 + × = 4 11 28 least common { 7,14,21,28,35…} 28 multiples {4,8,12,16,20,24,28…} 28 © Math As A Second Language All Rights Reserved

12 next next next next next next next next next 5 2 6 10 = × 6 6 2 5 12 + × = 5 22 30 least common {6, 12, 18, 24, 30…} 30 multiples {5, 10, 15, 20, 25, 30…} 30 © Math As A Second Language All Rights Reserved


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