Adding and Subtracting Rational Numbers

Rules for Adding or Subtracting Rational Numbers:

  1. Remove brackets and simplify signs, ensuring all denominators are positive.
  2. Convert mixed fractions to improper fractions and write whole numbers with a denominator of 1.
  3. Find the lowest common denominator (LCD).
  4. Add or subtract the numerators while keeping the denominator the same.
  5. Simplify the final answer to its lowest terms.

Ex 1.

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Ex 2.

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Ex 3.

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Problem 1

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