대분수의 덧셈과 뺄셈 단원 종합

I.1Write each improper fraction as a mixed number, and each mixed number as an improper fraction.

1. 1
   $\frac{82}{9}=$ 
2. 2
   $\frac{19}{4}=$ 
3. 3
   $\frac{37}{4}=$ 
4. 4
   $4\frac{3}{8}=$ 

I.2Round each to the nearest whole number.

1. 5
   $12\frac{1}{6}\approx$ 
2. 6
   $5\frac{3}{4}\approx$ 
3. 7
   $18\frac{3}{5}\approx$ 
4. 8
   $14\frac{5}{9}\approx$ 

I.3Round each mixed number to the nearest whole number. Then estimate.

1. 9
   $6\frac{1}{12}-2\frac{1}{5}\approx$ 
2. 10
   $4\frac{7}{8}-3\frac{1}{4}\approx$ 
3. 11
   $4\frac{3}{8}-1\frac{1}{6}\approx$ 
4. 12
   $7\frac{1}{5}-4\frac{1}{8}\approx$ 

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

1. 13
   $3\frac{3}{8}+5\frac{3}{4}=$ 
2. 14
   $4\frac{5}{8}+3\frac{1}{2}=$ 

I.4Add. Write each answer in simplest form. (continued)

1. 15
   $5\frac{1}{6}+3\frac{1}{3}=$ 
2. 16
   $1\frac{1}{2}+3\frac{5}{6}=$ 

I.5Subtract. Write each answer in simplest form.

1. 17
   $4\frac{1}{2}-3\frac{5}{12}=$ 
2. 18
   $5\frac{1}{4}-1\frac{1}{8}=$ 
3. 19
   $5\frac{1}{2}-3\frac{7}{8}=$ 
4. 20
   $4\frac{5}{12}-2\frac{5}{6}=$ 

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

1. 21
   $5\frac{1}{2}-4\frac{5}{8}=$ 
2. 22
   $5\frac{1}{4}+2\frac{7}{12}=$ 
3. 23
   $5\frac{5}{8}-2\frac{1}{2}=$ 
4. 24
   $5\frac{11}{12}-2\frac{1}{6}=$ 

I.1Improper Fractions & Mixed Numbers

1. 1$9\frac{1}{9}$
2. 2$4\frac{3}{4}$
3. 3$9\frac{1}{4}$
4. 4$\frac{35}{8}$

I.2Round Mixed Numbers

1. 512
2. 66
3. 719
4. 815

I.3Estimate Sums & Differences of Mixed Numbers

1. 9$6-2=4$
2. 10$5-3=2$
3. 11$4-1=3$
4. 12$7-4=3$

I.4Add Mixed Numbers with Unlike Denominators

1. 13$9\frac{1}{8}$
2. 14$8\frac{1}{8}$
3. 15$8\frac{1}{2}$
4. 16$5\frac{1}{3}$

I.5Subtract Mixed Numbers with Unlike Denominators

1. 17$1\frac{1}{12}$
2. 18$4\frac{1}{8}$
3. 19$1\frac{5}{8}$
4. 20$1\frac{7}{12}$

I.6Adding & Subtracting Mixed Numbers

1. 21$\frac{7}{8}$
2. 22$7\frac{5}{6}$
3. 23$3\frac{1}{8}$
4. 24$3\frac{3}{4}$