Adding and Subtracting Fractions By: Maren Miller.

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Presentation transcript:

Adding and Subtracting Fractions By: Maren Miller

Review What is a numerator? What is a denominator? What does a normal fraction look like? What does a improper fraction look like? What does a mixed number look like?

Like Fractions When fractions have the same denominator they are like fractions. You can add or subtract fractions when you have like fractions. These are all like fractions

Adding Like Fractions Steps: 1.Make sure that you have like fractions. 2.Add the numerators. 3.Write the sum over the denominator

Subtracting Like Fractions Steps: 1.Make sure that you have like fractions. 2.Subtract the numerators. 3.Write the difference over the denominator. 4.You can find an equivalent fraction sometimes The equivalent fraction is: 1 2

Exercise #1 Add or subtract, write the mixed number if necessary / / / 2 = 2. 2 / / 3 = 3. 3 / / 4 = 4. 5 / / 7 = 5. 3 / / 9 = 6. 2 / / 8 = 7. 4 / / 5 = 8. 7 / / 8 = 9. 2 / / 6 = / / 7 = / / 7 = / / 4 = / / 6 = / / 13 = / / 9 = / / 3 = 2 / /41 1/4 1 2/71 2/7 8/98/9 0 1/71/7 1 2/81 2/8 5/65/6 1 3/71 3/7 1/51/5 2 1/42 1/4 2 1/31/3 8/98/9 2 1/32 1/3 2 ( )