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Adding and Subtracting Fractions and Mixed Numbers

Adding and Subtracting Fractions and Mixed Numbers. April Ferrell 2006. Add and Subtract Fractions. Add and Subtract Fractions with Like Denominators. Add or subtract the whole numbers Add or subtract the numerators The denominators stay the SAME! Simplify your answer

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Adding and Subtracting Fractions and Mixed Numbers

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  1. Adding and Subtracting Fractions and Mixed Numbers April Ferrell 2006

  2. Add and Subtract Fractions

  3. Add and Subtract Fractions with Like Denominators • Add or subtract the whole numbers • Add or subtract the numerators • The denominators stay the SAME! • Simplify your answer • Divide by the Greatest Common Factor • Turn improper fractions into mixed numbers

  4. 10 . 7 3 12 12 • 1/4 • 1/12 • 1/3 • 10/12

  5. 10 Ryan uses 5/6 cans of red paint and 3/6 cans of blue paint. How much more red paint than blue paint did he use? • 1/3 • 1 1/2 • 2/6 • 9/6

  6. 10 . 1 2 6 5 3 3 • 11 3/8 • 12 • 13 • 12 11/15

  7. 10 Rachel ate 2 1/4 pieces of pizza. Laura ate 1 3/4 pieces of pizza. How much pizza did they eat all together? • 1 2/4 • 4 • 2 1/2 • 3

  8. 10 . 7 1 11 34 8 8 • 23 2/3 • 45 6/8 • 23 3/4 • 14 5/8

  9. 10 Josh spent 1 1/3 hours on his homework on Monday and 2 2/3 on Tuesday. How much more time did he spend on Tuesday than Monday? • 1 1/3 • 4 • 3 1/3 • 3

  10. Add and Subtract Fractions with Unlike Denominators

  11. Add and Subtract Fractions with Unlike Denominators • Find the Least Common Multiple • Make equivalent fractions • Add or subtract the numerators • The denominators stay the SAME! • Simplify your answer • Find the Greatest Common Factors • Turn improper fractions into mixed numbers

  12. 10 . 1 4 2 6 • 1 1/6 • 5/8 • 7/6 • 1/6

  13. 10 Lisa made a pizza using 1/2 cup of ham and 3/5 cup of cheese. How many cups of toppings did she use? • 1 1/10 • 5/4 • 11/10 • 1 1/4

  14. 10 . 20 2 24 6 • 1 4/24 • 1/2 • 12/24 • 18/18

  15. 10 Of the students in our class, 1/3 are in band and 7/12 are in chorus. How many more students are in chorus than the band? • 3/12 • 1/4 • 8/15 • 10/12

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