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# Lesson 1 operations with fractions part 1 (notes)

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### Lesson 1 operations with fractions part 1 (notes)

1. 1. September 16, 2013 On page 8 – I can add, subtract, multiply and divide fractions and mixed numbers Do Now: How do you feel about working with fractions? (Do not copy the question. Restate the question in your answer. Make sure you are using complete sentences).
2. 2. Operations with Fractions 9/16/13 • Operations with Fractions foldable (6-flap foldable)
3. 3. Step 1 – Stagger three sheet of copy paper
4. 4. Step 2 – Fold the top of the papers to meet the bottom about an inch.
5. 5. Step 3 – Crease the fold and staple the top.
6. 6. Step 4 – Label each flap
7. 7. Step 5 – Copy the Vocabulary term.
8. 8. • Proper fractions – fractions whose numerators are less than their denominators • Improper fractions – Fractions whose denominators are less than their numerators • Mixed numbers – Numbers with whole numbers and a proper fraction • Reciprocal – A pair of factors whose product is equal to one (1) VOCABULARY
9. 9. Mixed Numbers  Improper Fractions • Multiply whole number by denominator • Add numerator • Denominator keep! • Divide numerator by denominator • Use quotient as whole number • Write remainder as numerator • Keep denominator MAD TIBO 13 x 3 = 39 39 + 9 = 48 48 13 9 44) 4 -36 8 4 8 9
10. 10. Adding & Subtracting Adding Fractions • Find LCD if denominators are unlike. • Find equivalent fractions using the LCD. • Add the numerators. Keep the denominator. • Add the whole numbers, if needed. • Simplify. 2 5 6 +1 4 5 = LCD = 30 2 5 6 = 2 30 1 4 5 =1 30 25 24 49 30 3 4 19 30