Unit Review: Adding & subtracting fractions

H.1Round each fraction to $0$, $\frac{1}{2}$, or $1$. Then estimate.

1. 1
   $\frac{4}{5}-\frac{7}{10}\approx$ 
2. 2
   $\frac{4}{5}-\frac{1}{5}\approx$ 
3. 3
   $\frac{4}{5}-\frac{2}{5}\approx$ 
4. 4
   $\frac{5}{8}-\frac{1}{12}\approx$ 

H.2Add. Write each answer in simplest form.

1. 5
   $\frac{5}{6}+\frac{3}{4}=$ 
2. 6
   $\frac{2}{5}+\frac{1}{10}=$ 
3. 7
   $\frac{3}{8}+\frac{1}{4}=$ 
4. 8
   $\frac{9}{10}+\frac{7}{12}=$ 

H.3Subtract. Write each answer in simplest form.

1. 9
   $\frac{3}{8}-\frac{1}{6}=$ 
2. 10
   $\frac{3}{4}-\frac{2}{5}=$ 
3. 11
   $\frac{5}{12}-\frac{2}{5}=$ 
4. 12
   $\frac{5}{6}-\frac{1}{3}=$ 

H.4Add. Write each answer in simplest form.

1. 13
   $\frac{1}{6}+\frac{1}{8}+\frac{1}{2}=$ 
2. 14
   $\frac{7}{10}+\frac{1}{5}+\frac{1}{4}=$ 
3. 15
   $\frac{3}{8}+\frac{1}{10}+\frac{3}{4}=$ 
4. 16
   $\frac{1}{6}+\frac{1}{4}+\frac{5}{8}=$ 

H.5Fill in the missing fraction. Write it in simplest form.

1. 17
   $1\frac{11}{60}-\frac{\boxed{}}{\boxed{}}=$ $\frac{7}{12}$
2. 18
   $\frac{\boxed{}}{\boxed{}}-\frac{7}{12}=$ $\frac{1}{6}$
3. 19
   $\frac{\boxed{}}{\boxed{}}-\frac{1}{4}=$ $\frac{3}{5}$
4. 20
   $1\frac{3}{10}-\frac{\boxed{}}{\boxed{}}=$ $\frac{1}{2}$

H.6Add or subtract. Write each answer in simplest form.

1. 21
   $\frac{3}{10}+\frac{3}{8}=$ 
2. 22
   $\frac{7}{12}-\frac{1}{8}=$ 
3. 23
   $\frac{5}{8}-\frac{1}{2}=$ 
4. 24
   $\frac{1}{2}+\frac{9}{10}=$ 

H.1Estimate Sums & Differences of Fractions

1. 1$1-\frac{1}{2}=\frac{1}{2}$
2. 2$1-0=1$
3. 3$1-\frac{1}{2}=\frac{1}{2}$
4. 4$\frac{1}{2}-0=\frac{1}{2}$

H.2Add Fractions with Unlike Denominators

1. 5$1\frac{7}{12}$
2. 6$\frac{1}{2}$
3. 7$\frac{5}{8}$
4. 8$1\frac{29}{60}$

H.3Subtract Fractions with Unlike Denominators

1. 9$\frac{5}{24}$
2. 10$\frac{7}{20}$
3. 11$\frac{1}{60}$
4. 12$\frac{1}{2}$

H.4Add 3 or More Fractions

1. 13$\frac{19}{24}$
2. 14$1\frac{3}{20}$
3. 15$1\frac{9}{40}$
4. 16$1\frac{1}{24}$

H.5Complete Addition & Subtraction Sentences

1. 17$\frac{3}{5}$
2. 18$\frac{3}{4}$
3. 19$\frac{17}{20}$
4. 20$\frac{4}{5}$

H.6Adding & Subtracting Fractions (Unlike Denominators)

1. 21$\frac{27}{40}$
2. 22$\frac{11}{24}$
3. 23$\frac{1}{8}$
4. 24$1\frac{2}{5}$