There will be a "re-quiz" on Tuesday! Some things to remember:
1. You only need a common denominator when you are adding or subtracting fractions.
2. Remember to change all division to multiplying by the reciprocal.
3. Always simplify. Never leave your answer as an improper fraction.
4. Be carefuly with positive/negative mixed numbers when adding/subtracting. They can be tricky!
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