Adding Mixed Numbers

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Adding Mixed Numbers Find the sum. 4 9 1 1 9 + 3 Rewrite the fraction using LCD if denominators are different. 4 9 1 1 9 2. Add or subtract the fractions, then the whole numbers. + 3 3. Simplify if possible. In this problem, the denominators are the same, so begin with step 2.

Adding Mixed Numbers Find the sum. 4 9 1 1 9 + 3 5 9 4 Rewrite the fraction using LCD if denominators are different. 4 9 1 1 9 2. Add or subtract the fractions, then the whole numbers. + 3 3. Simplify if possible. 5 9 4 In this problem, the denominators are the same, so begin with step 2.

Let’s Do Another Example! Find the sum. 4 9 1 1 3 3 + +

Let’s Do Another Example! First we re-write the problem with common denominators. 3 1 4 9 + X 3 4 7 9

Let’s Do Another Example! 7 8 4 1 4 5 +

Let’s Do Another Example! 7 8 7 8 4 4 X 2 1 4 8 2 5 5 + + X 2

Let’s Do Another Example! 7 8 7 8 4 4 X 2 1 4 8 2 Rename the Improper Fraction 5 5 + + X 2 1 8 9 8 9 = 1

Let’s Do Another Example! 7 8 7 8 4 4 X 2 1 4 8 2 5 5 + + X 2 1 8 9 8 9 = 1 1 8 10 Add the whole numbers.

Now You Try! 3 5 + 7 9 10 5 1 9 + 6

Now You Try - Answers! 3 5 + 7 9 10 15 = 1 2 11 5 1 9 + 6 11 17 18