4 2

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4 2

  1. 1. Fractions With Like Denominators Lesson 4-2
  2. 2. Terminology Like decimals, fractions represent parts of numbers. A fraction is usually a number that is between 0 and 1. Numerator - number on top Denominator - number on bottom
  3. 3. To add or subtract fractions with like denominators: <ul><li>If the denominators are already the same, then you’re ready to add or subtract. </li></ul><ul><li>Add or subtract the numerators. Keep the denominators the same. </li></ul><ul><li>Simplify (reduce) the fraction, if possible. </li></ul><ul><li>If you end up with an improper fraction, change it to a mixed number. </li></ul>
  4. 4. Examples 1 5 + 2 5 = 3 5 This answer cannot be reduced any further.
  5. 5. 9 14 5 14 = 4 14 The GCF of 4 and 14 is 2, so we divide by 2 to reduce. ÷ 2 = 2 7
  6. 6. 8 9 + 3 9 = 11 9 This is an improper fraction (the top is bigger than the bottom), so we want to change it to a mixed number. To do this, divide the bottom into the top. 9 11 1 9 2 Answer: 1 2 9
  7. 7. Try Some 7 12 5 12 = 4 7 + 1 7 = 8 15 + 12 15 = 1 6 5 7 1 1 3
  8. 8. Homework Time!

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