Practice with Unlike Denominators

1. Subtract.

$$8\frac{4}{5}-\frac{1}{2}=$$

2. Add.

$$4 \dfrac{1}{2}+1 \dfrac{2}{5}=  $$

3. Subtract.

$$6 \dfrac{2}{5}-3\dfrac{1}{4}=  $$

4. Add.

$$\dfrac{2}{3}+2 \dfrac{1}{6}=$$

Source: Khan Academy, https://www.khanacademy.org/math/cc-fifth-grade-math/imp-fractions-3/imp-adding-and-subtracting-mixed-number-with-unlike-denominators/e/adding_subtracting_mixed_numbers_1
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1. $$8\frac{4}{5}-\frac{1}{2}= 8\frac{3}{10}$$

2. $$4 \dfrac{1}{2}+1 \dfrac{2}{5}=5 \dfrac{9}{10}$$

3. $$6 \dfrac{2}{5}-3\dfrac{1}{4}=  3\frac{3}{20}$$

4. $$\dfrac{2}{3}+2 \dfrac{1}{6}=2 \dfrac{5}{6}$$