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## Adding and Subtracting Fractions

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**DON’T COPY**3 Apples + 5 Apples = 7 Oranges + 4 Oranges = 5 Apples – 2 Apples = 2 Quarters + 5 Quarters = 4 Fifths + 3 Fifths = 7 Halves + 2 Halves = 4 Apples + 6 Oranges = 4 Halves + 6 Fifths = You cannot add things that are not the same type.**When adding and subtracting fractions you can only add them**if they have the same denominator (bottom number). and can be added. and cant be added unless we can change the fractions to have the same denominator. 4 3 2 3 1 5 7 8**1. 5 3**4 4 2. 2 3 7 7 3. 1 14 6 6 4. 3 5 9 9 5. 3 9 12 12**1. 5 1**7 7 2. 5 3 8 8 3. 4 3 3 3 4. 13 5 8 8 5. 3 9 10 10**If the fractions do not have the same denominator you can**change them into equivalent fractions. 1 2 4 3 3 8 11 12 1212**The easiest way is to multiply both denominators together to**get the answer denominator. Here 4 x 5 = 20. Here 3 x 4 = 12. 5 3 ? 4 5 20 2 3 ? 3 4 12**What denominators would the answer have?**1. 5 1 ? 7 4 2. 5 3 ? 3 11 3. 4 3 ? 9 5 4. 13 5 ? 2 5 5. 3 9 ? 23 10**The numerators are multiplied by the other denominators.**5 3 4 7 28 28 5x7 3x4 47 35 12 28 2828**3 2**4 3 3x3 2x4 12 12 17 9 8 12 1212 1 8 7 5 1x5 8x7 35 35 61 5 56 35 3535**5 2**4 5 5x5 2x4 20 20 17 25 8 20 2020 5 3 2 4 5x4 2x3 8 8 14 20 6 8 88 7 4**5 3**6 2 5x2 3x6 12 12 28 10 18 12 1212 7 3 1 7 2 5 1x5 7x2 10 10 -9 5 14 10 1010