Fractions: Subtracting fractions with different denominators

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Presentation transcript:

Fractions: Subtracting fractions with different denominators Silent Teacher Intelligent Practice Narration Your Turn 2 5 − 1 7 2 3 − 1 4 3 4 − 3 5 Practice

Worked Example Your Turn 2 5 − 1 3 2 3 − 1 5

2 5 − 1 7 1 7 − 2 5 2 5 − 2 7 2 3 − 2 5 2 3 − 1 4 3 4 − 2 3 3 4 − 2 5 2 5 − 3 40 3 4 − 3 5 3 4 − 9 15 6. 1. 7. 2. 8. 3. 9. 4. 10. 5.

2 5 − 1 7 = 9 35 1 7 − 2 5 =− 9 35 2 5 − 2 7 = 4 35 2 3 − 2 5 = 4 15 2 3 − 1 4 = 5 12 2 3 − 3 4 =− 1 12 3 4 − 2 3 = 1 12 3 4 − 2 30 = 41 60 3 4 − 3 5 = 3 20 3 4 − 9 15 = 3 20 1. 6. 2. 7. 3. 8. 4. 9. 5. 10.