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Fraction Review

Fraction Review. TAKE NOTES!!!!!!. Numerator: the number on top in a fraction. Vocabulary. Denominator: the number on bottom in a fraction. Example: What is the numerator in the following fraction? What is the denominator?. Answer: Numerator is 3. Denominator is 5.

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Fraction Review

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  1. Fraction Review TAKE NOTES!!!!!!

  2. Numerator: the number on top in a fraction Vocabulary Denominator: the number on bottom in a fraction Example: What is the numerator in the following fraction? What is the denominator? Answer: Numerator is 3. Denominator is 5.

  3. Vocabulary continued: Improper fraction: when the numerator is larger than the denominator 5 > 3 Example: Since numerator is bigger than denominator, this fraction is improper Numerator is 5 Denominator is 3 Example: Which of the following fractions are improper? NOTimproper improper improper

  4. Adding Fractions • Get a common denominator 2) Change your numerators 3) Add numerators, keep same denominator 4) Put answer in simplest form

  5. Example 1 + What will 5 AND 3 go into?? Step 1: Get a common denominator! 15, 30…… Step 3: Add numerator Step 2: Change your numerator. 3 = = + Keep same denominator 3 = 5 = = 5 Step 5: Put in simplest form Final Answer is

  6. Subtracting Fractions 1) Get a common denominator 2) Change your numerators 3) Subtract numerators, keep same denominator 4) Put your answer in simplest form

  7. Example 2 ‒ ‒ Step 1: Get a common denominator 12, 24, 36, … What will 6 AND 4 go into?? Step 2: Change your numerator Step 3: Subtract numerators 4 Keep same denominator = = 4 = 6 = = 6 ÷ 6 = Step 5: Put in simplest form ÷ 6

  8. Multiplying Fractions • Multiply numerators 2) Multiply Denominators 3) Put answer in simplest form

  9. Step 2: Multiply denominators Example 3 Step 1: Multiply Numerators 6 6 = = 48 Step 3: Put answer in simplest form Final answer: ÷ 6 = ÷ 6

  10. Dividing Fractions 1) Keep 1st fraction the SAME ÷ to 2) Change 3) FLIP the 2nd fraction 4) Multiply 5) Put answer in simplest form

  11. Example 4 ÷ Step 1: Keep 1stfraction the SAME Step 2: Change ÷ to x Step 4: Multiply Step 3: FLIP the 2nd fraction =

  12. This fraction is improper! Need to divide! Example 4 continued: Step 5: Put your answer in simplest form! Remainder becomes numerator! Same denominator! 1 18 21 ‒18 3 The fractionpart is not in simplest form! 1

  13. Example 4 continued Simplify the fraction part! 3 = 3 Final answer is 1

  14. HOMEWORK STUDY YOUR NOTES!!!!

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