3-6 Adding and Subtracting Unlike Fractions. Add Unlike Fractions Unlike fractions are fractions with different denominators. Key Concept: Adding Unlike.

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Presentation transcript:

3-6 Adding and Subtracting Unlike Fractions

Add Unlike Fractions Unlike fractions are fractions with different denominators. Key Concept: Adding Unlike Fractions WordsTo add fractions with unlike denominators, cross multiply and multiply the denominators. Then add and simplify as with like fractions. Example

Add Unlike Fractions 1.

Add Unlike Fractions 2.

Add Unlike Fractions Find each sum. Write in simplest form

Add Unlike Fractions Find each sum. Write in simplest form

Add Mixed Numbers 1.

Add Mixed Numbers Find each sum. Write in simplest form

Subtracting Unlike Fractions Key Concept: Subtracting Unlike Fractions WordsTo subtract fractions with unlike denominators, cross multiply and multiply the denominators. Then subtract and simplify as with like fractions. Example

Subtract Unlike Fractions 1.

Subtract Unlike Fractions Find each difference. Write in simplest form

Subtract Mixed Numbers 1.

Subtract Mixed Numbers Find each difference. Write in simplest form