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adding and subtracting fractions with common denominator

Total questions: 23

Worksheet time: 1hrs 2mins

Name
Class
Date
1.
What must you have to add and subtract fractions?
a)
Common numerators
b)
Different numerators
c)
Different denominators
d)
Common denominators
2.
a)

310\frac{3}{\text{10}}

b)

35\frac{\text{3}}{\text{5}}

c)

325\frac{\text{3}}{\text{25}}

d)

155\frac{\text{15}}{\text{5}}

3.
The bottom number is called the __________.
a)
numerator
b)
denominator
4.
a)

16\frac{\text{1}}{\text{6}}

b)

11

c)

10\frac{\text{1}}{\text{0}}

d)

112\frac{\text{1}}{\text{12}}

5.
a)

38\frac{\text{3}}{\text{8}}

b)

316\frac{\text{3}}{\text{16}}

c)

18\frac{\text{1}}{\text{8}}

d)

28\frac{\text{2}}{\text{8}}

6.

 5 9− 19\frac{\text{5 }}{\text{9}}-\ \frac{\text{1}}{\text{9}}  

a)

 58\frac{\text{5}}{\text{8}}  

b)

 49\frac{\text{4}}{\text{9}}  

c)

 69\frac{\text{6}}{\text{9}}  

d)

 66\frac{\text{6}}{\text{6}}  

7.
a)

18\frac{\text{1}}{\text{8}}

b)

17\frac{\text{1}}{\text{7}}

c)

81\frac{\text{8}}{\text{1}}

d)

25\frac{\text{2}}{\text{5}}

8.

 76−46\frac{\text{7}}{\text{6}}-\frac{\text{4}}{\text{6}}  

a)

 36\frac{\text{3}}{\text{6}}  

b)

 56\frac{\text{5}}{\text{6}}  

c)

 77\frac{\text{7}}{\text{7}}  

d)

 33  

9.

 12+12\frac{\text{1}}{\text{2}}+\frac{\text{1}}{\text{2}} 

a)

 22\frac{\text{2}}{\text{2}}  

b)

 34\frac{\text{3}}{\text{4}}  

c)

55

d)

pizza

10.
a)

16\frac{\text{1}}{\text{6}}

b)

1

c)

10\frac{\text{1}}{\text{0}}

d)

112\frac{\text{1}}{\text{12}}

11.
The top number is called the ___________.
a)
denominator
b)
numerator
12.

 33−23\frac{\text{3}}{\text{3}}-\frac{\text{2}}{\text{3}}  

a)

 77  

b)

 13\frac{1}{\text{3}}  

c)

 53\frac{\text{5}}{\text{3}}  

d)

 35\frac{\text{3}}{\text{5}}  

13.

 910+110\frac{\text{9}}{\text{10}}+\frac{\text{1}}{\text{10}} 

a)

1010\frac{\text{10}}{\text{10}}

b)

1

c)

810\frac{\text{8}}{\text{10}}

d)

910\frac{\text{9}}{\text{10}}

14.

 78−28\frac{\text{7}}{\text{8}}-\frac{\text{2}}{\text{8}}  

a)

 8 8\frac{\text{8 }}{\text{8}}  

b)

 68\frac{\text{6}}{\text{8}}  

c)

 99  

d)

 58\frac{5}{\text{8}}  

15.
a)

514\frac{\text{5}}{\text{14}}

b)

37\frac{\text{3}}{\text{7}}

c)

57\frac{\text{5}}{\text{7}}

d)

514\frac{\text{5}}{\text{14}}

16.

 56−36\frac{\text{5}}{\text{6}}-\frac{\text{3}}{\text{6}}  

a)

 99  

b)

 46\frac{\text{4}}{\text{6}}  

c)

 26\frac{\text{2}}{\text{6}}  

d)

 38\frac{3}{\text{8}}  

17.
a)

45\frac{\text{4}}{\text{5}}

b)

410\frac{\text{4}}{\text{10}}

c)

25\frac{\text{2}}{\text{5}}

d)

5

18.

 69−39\frac{\text{6}}{\text{9}}-\frac{3}{\text{9}}  

a)

 22\frac{\text{2}}{\text{2}}  

b)

 39\frac{\text{3}}{\text{9}}  

c)

 99\frac{\text{9}}{\text{9}}  

d)

 1010  

19.

 14+14\frac{1}{\text{4}}+\frac{\text{1}}{\text{4}} 

a)

 44\frac{4}{\text{4}}  

b)

1

c)

 24\frac{\text{2}}{\text{4}}  

d)

 22\frac{\text{2}}{\text{2}} 

20.
a)

apple

b)

37\frac{\text{3}}{\text{7}}

c)

57\frac{\text{5}}{\text{7}}

d)

514\frac{\text{5}}{\text{14}}

21.
a)

15\frac{\text{1}}{\text{5}}

b)

51\frac{\text{5}}{\text{1}}

c)

5

d)

34\frac{\text{3}}{\text{4}}

22.

 48+18\frac{\text{4}}{\text{8}}+\frac{\text{1}}{\text{8}}  

a)

57\frac{\text{5}}{\text{7}}

b)

37\frac{\text{3}}{\text{7}}

c)

58\frac{\text{5}}{\text{8}}

d)

38\frac{\text{3}}{\text{8}}

23.
The bottom number is called the __________.
a)
numerator
b)
denominator