Addition with Like Denominators

1. Add the numerators
2. Keep the denominator the same.
3. Simplify (reduce) if possible.

 

 

 

 

 

 

 

 

 

Subtraction with Like Denominators

1. Subtract the numerators
2. Keep the denominator the same.
3. Simplify (reduce) if possible.

 

 

 

 

 

 

 

 

Adding and Subtracting Fractions with like denominators

We MUST have common denominators before we can add or subtract.

Addition with Unlike Denominators

1. Find a common denominator
2. Make equivalent fractions with the same denominator
3. Add the numerators
4. Simplify (reduce) if possible.

 

 

 

 

 

 

Subtraction with Unlike Denominators

1. Find a common denominator
2. Make equivalent fractions with the same denominator
3. Subtract the numerators
4. Simplify (reduce) if possible.

 

 

 

 

 

 

 

 

Adding and Subtracting Fractions with Unlike Denominators

Adding 3 fractions with unlike denominators

Add and Subtract Fractions Help