1. I will be able to add and subtract fractions. Adding and Subtracting Fractions Learning Target

2. Add. Write the answer in simplest form. Adding or Subtracting Fractions with Like Denominators A. 5858 + 1818 5858 + 1818 = 5 + 1 8 Add the numerators and keep the denominator. = 6868 = 3434 Simplify.

3. Add. Write the answer in simplest form. Adding or Subtracting Fractions with Like Denominators A. 7979 + 6969 7979 + 6969 = 7+6 9 Add the numerators and keep the denominator. = 13 9 Simplify if necessary.

4. To add or subtract fractions with different denominators, you must rewrite the fractions with a common denominator Two Ways to Find a Common Denominator Find the LCM (least common multiple) of the denominators. Multiply the denominators. Course 2 Adding and Subtracting Fractions

5. Add. Write the answer in simplest form. Adding and Subtracting Fractions with Unlike Denominators 5656 + 7878 + 5 · 4 6 · 4 The LCM of the denominator is 24. 20 24 21 24 Write equivalent fractions using the common denominator. 41 24 Add the numerators. Simplify if necessary It is not necessary to change an improper fraction to a mixed number. 7 · 3 8 · 3

6. Add. Write the answer in simplest form. Adding and Subtracting Fractions with Unlike Denominators 3838 + 2525 3 · 5 8 · 5 The LCM of the denominator is 72 15 40 16 40 Write equivalent fractions using the common denominator. 31 40 Add the numerators. Simplify if necessary 2 · 8 5· 8 +

7. Subtract. Write the answer in simplest form. Adding and Subtracting Fractions with Unlike Denominators 3434 2323 3· 3 4· 3 The LCM of the denominator is 12 9 12 8 12 Write equivalent fractions using the common denominator. 1 12 Add the numerators. Simplify if necessary 2 · 4 3 · 4 – –